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81-519: Design work on the Dome Zero began in 1976 and the prototype was completed in 1978. The creation of the car was motivated by Hayashi's desire to compete in the 24 Hours of Le Mans , a prospect that had full support from his employees, most of whom had professional backgrounds in auto racing. In addition to developing the Zero into a race car, Hayashi intended to fund entry into Le Mans competition by selling cars to

162-485: A ZF 5-speed transmission , independent double-wishbone suspension and four-wheel disk brakes , mounted inboard at the rear. The front brake calipers were sourced from a Subaru Leone , the steering column sourced from a Honda Accord and the interior door pulls from a Toyota Celica . The Dome Zero prototype was completed in time for the 48th Geneva Motor Show in 1978 where its design received attention from various investors and interested buyers. Despite this interest,

243-434: A 4.2-litre naturally-aspirated V8. In seasons 2017 through 2020, the engine produced about 600  bhp . Dallara , Onroak Automotive (Ligier), Oreca and the joint-venture Riley Tech / Multimatic were selected by FIA as the four exclusive chassis constructors, which must be closed-cockpit designs. Before the start of the 2021 season LMP2 cars have been slowed down to ensure the necessary lap time difference between

324-541: A break as all applications that year were deemed unfit by the ACO. Frederic Sausset, a quadruple amputee, drove a modified Morgan LMP2 in the 2016 race. Financial problems forced Welter Racing to cancel its 2017 Garage 56 run with the Green4U Panoz Racing GT-EV, a biomethane -fuel prototype featuring a 3-cylinder 1.2-liter engine fueled by biomethane stored in cryogenic tanks. Welter Racing went on to develop

405-452: A car inspection on Monday and Tuesday. Currently, these sessions are held in the evening, with two separate two-hour sessions held each night. Friday serves as a day of rest, and a parade of all the drivers through Le Mans is held. Test days held at the end of April or beginning of May served as a pre-qualification weeding out the slowest cars. However, in 2005 the exorbitant cost of transporting cars to and from Le Mans led organizers to move

486-551: A hybrid electric car based on the DeltaWing's design, took the Garage 56 slot in 2014. Despite an early retirement from the race after only 23 minutes due to a gearbox issue, the ZEOD RC achieved its goals of hitting a top speed of 300 km/h (186.41 mph), and completing the first ever lap of Le Mans using exclusively electric power at racing speed. In 2015, the Garage 56 program took

567-429: A relief driver can take over during a pit stop while eating and resting. Current regulations mandate that three drivers share each competing vehicle. Competing teams race in groups called "classes", or cars of similar specification, while competing simultaneously for outright placing amongst all classes. Originally, the race showcased cars as they were sold to the general public, then called "Sports Cars", in contrast with

648-572: A retail price between US$ 30,000 to US$ 60,000. Efforts to homologate the P2 for sale in Japan and overseas failed, and it was never produced for commercial sale. Following difficulties with road homologation of the Zero, Hayashi decided to develop a race car, the Zero RL. This was intended to help publicize road cars and to realize Hayashi and his employees' ambitions of racing at the 24 Hours of Le Mans . The 1979 Zero RL

729-479: A single open-cockpit class of World Sports Cars equivalent to LMP1. This formula continued up to 1996, with many manufacturers embracing the LMP and WSC classes, including Ferrari , Porsche , and Mazda . In 1997, the first European series based around Le Mans Prototypes was launched, known as the " International Sports Racing Series ". Using classes similar to LMP1/WSC and LMP2, these cars were known as "SR1" and "SR2" by

810-405: A standard 4.2-litre Gibson V8 engine. LMP1 teams are subject to no such restrictions. Their extra power, lower weight, and more complex aerodynamics result in much quicker lap times; LMP1 cars also may use hybrid technology. The next class is LMGT3 , which are similar to production-based sports cars. Concept cars intended to test new automotive technologies may participate in the race under

891-568: A track, the LMP1s were the fastest closed-wheel racing cars used in circuit racing. Le Mans Prototypes are considered a class above production-based grand tourer cars, which compete alongside them in sports car racing . Later, LMP1 designs included hybrid cars that use electric motors to assist acceleration. The Le Mans Prototype LMP1 class has been replaced by Le Mans Hypercars in the FIA World Endurance Championship (WEC) and in

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972-454: Is 2010's 5,410 km (3,360 mi), six times the length of the Indianapolis 500 , or about 18 times longer than a Formula One Grand Prix . Drivers and racing teams strive for speed and avoiding mechanical damage, as well as managing the cars' consumables, primarily fuel , tires , and braking materials. It also tests endurance, with drivers frequently racing for over two hours before

1053-451: Is that cars must be switched off while refueling in the pits. Not only is this safer and less of a fire hazard, but it is also another test of reliability, demanding a guaranteed ability to restart many times under race conditions. Another element of this rule is that mechanics are not allowed to work on the car while it is being refuelled (other than helping a driver in or out of the car), which has led teams to adapt innovative ways to decrease

1134-472: Is the oldest active endurance racing event in the world. Unlike fixed-distance races whose winner is determined by minimum time, the 24 Hours of Le Mans is won by the car that covers the greatest distance in 24 hours. The cars on this track are able to achieve speeds of 366 km/h (227 mph), and reached 407 km/h (253 mph) on the Mulsanne Straight in 1988  – instigating

1215-560: Is track marshals waving safety flags during the race's final lap, congratulating the winners and other finishers. Le Mans was the venue for the first televised instance of a winning driver celebrating by spraying champagne instead of drinking it. When Dan Gurney won the 1967 race with co-driver A. J. Foyt , the two drivers mounted the victory podium, and Gurney was handed a magnum of champagne. Looking down, he saw Ford CEO Henry Ford II , team owner Carroll Shelby and their wives, as well as several journalists who had predicted disaster for

1296-472: The 1969 race, Jacky Ickx opposed it by walking across the track while his competitors ran. Although he was nearly hit by a faster competitor's car while walking, Ickx took the time to fasten his safety belts before pulling away. Privateer John Woolfe died in an accident on the first lap of that race; Ickx won. Le Mans Prototype A Le Mans Prototype ( LMP ) is a type of sports prototype race car used in various races and championships, including

1377-593: The 24 Hours of Le Mans , FIA World Endurance Championship , IMSA SportsCar Championship , European Le Mans Series , and Asian Le Mans Series . Le Mans Prototypes were created by the Automobile Club de l'Ouest (ACO). The technical requirements for an LMP include bodywork covering all mechanical elements of the car. As of 2023, there are two classes within Le Mans Prototypes, designated LMP2 and LMP3 . While not as fast as open-wheel Formula One cars around

1458-649: The Rolex Sports Car Series chose to use the FIA's SR1 and SR2 formula instead. 1998 saw a great expansion for the ACO's LMP classes. Following the cancellation of the IMSA GT Championship at the end of 1998, the ACO allowed for the creation of the American Le Mans Series. This series used the same class structure as the 24 Hours of Le Mans, meaning it was the first championship to use the LMP name. At

1539-450: The Rolex Sports Car Series ' 24 Hours of Daytona ) held all four major American endurance classics in preparation for teams to race at Le Mans . The race has approximately 60 competitors. Each car was required to have at least two seats. However, recently cars only need to have space to accommodate a second seat in the cockpit rather than the seat itself. Two doors are allowed; open cockpit cars do not require doors. Since 2014, all cars in

1620-718: The World Sportscar Championship from 1953 until that series' final season in 1992 . In 2011 , it was a part of the Intercontinental Le Mans Cup . Since 2012 , the race has been a part of the FIA World Endurance Championship . In the World Endurance Championship's super-season of May 2018 to June 2019, the 24 Hours of Le Mans was both the second and the last round of the season. Launched when Grand Prix motor racing

1701-623: The World Sportscar Championship had to offer, older Porsche 962s were allowed entry in Category 3. To further increase the size of the field, small open-cockpit race cars using production road car engines which were raced in small national championships were allowed in Category 4. Later, ACO announced its intentions to completely replace the Group C cars with Le Mans Prototypes . Two classes were created, with LMP1s running large displacement custom-built engines that were usually turbocharged, and LMP2s using

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1782-473: The "Garage 56" banner. Such entries are classified in the race results, though are not expected to be competitive as their sole focus is to demonstrate experimental features. The program debuted in 2012 with the DeltaWing , an unusual rocket-shaped car fielded by All-American Racers and supported by Nissan. The DeltaWing concept showed promise, delivering nearly LMP2-level performance while only consuming 48% of

1863-417: The 1979 6 Hours of Silverstone , driven by Chris Craft and Gordon Spice . Although it was third-fastest in practice, the Zero RL finished 12th of 13. Two Zero RLs raced at the 1979 24 Hours of Le Mans motor race (#6, driven by Craft/Spice, #7 by Tony Trimmer / Bob Evans ) but both failed to finish . Dome returned to Le Mans with new versions of the car in subsequent years. In the 1980 24 Hours of Le Mans

1944-774: The 2015–2019 first-generation ruleset were the Ginetta-Juno P3 , Ligier JS P3 , Norma M30 , ADESS-03 , and the Ave-Riley AR-02. The cars were eligible in a number of series, such as the Asian Le Mans Series, the European Le Mans Series, as well as the V de V Endurance Series and the IMSA Prototype Challenge . A number of championships for the class have also been created, such as the FRD LMP3 series and

2025-625: The 24 Hours of Le Mans from the 2021 season . Non-hybrid LMP1 cars were eligible to be "grandfathered" for two more seasons and compete alongside the new class for the 2021 to 2022 seasons. Starting from the 2023 season of WEC and IMSA SportsCar Championship, Le Mans Hypercars are joined by Le Mans Daytona h (LMDh) cars. These two kinds of prototypes will form the top class of endurance racing: Hypercar in WEC and Grand Touring Prototype (GTP) in IMSA. Le Mans Prototypes have used various names depending on

2106-499: The ACO deeming none of the applications sufficiently mature. 2020 saw Frederic Sausset attempting to return to Garage 56 under the SRT41 banner by fielding a specially modified Oreca 07 LMP2 car with a lineup of three disabled drivers; however, the attempt was cancelled due to the COVID-19 pandemic . The SRT41 program was delayed to 2021, which saw Garage 56 successfully making a return for

2187-790: The British LMP3 Cup. First-generation cars were powered by a 5.0-litre normally-aspirated Nissan VK50 V8 engine , producing 310 kW (420 hp). A 2nd Generation ruleset was introduced for 2020, with new cars introduced: the Ginetta G61-LT-P3 , Ligier JS P320 , Duqueine D-08 , and the ADESS-03 Evo. These cars can be built from its predecessors using an upgrade kit. The new LMP3 prototypes are used in Asian Le Mans Series, Michelin Le Mans Cup , IMSA VP Racing SportsCar Challenge , European Le Mans Series, and Prototype Cup Germany. For

2268-463: The FIA. 1998 saw the creation of another series of Le Mans Prototypes, with the new United States Road Racing Championship attempting to break away from the IMSA GT Championship. To differ from IMSA'S WSC class, the USRRC named their open-cockpit prototypes " Can-Am " in an attempt to resurrect the sportscar championship of the 1970s. However, the USRRC collapsed before the end of 1999, with the series becoming

2349-678: The Hypercar category, a single aero kit has been made mandatory across the whole season and is limited to the Le Mans specification in the WEC; the ELMS teams have retained the right to switch between the aero kits. LMP3 is an entry-level prototype class intended for introducing young drivers and new teams to endurance racing before they progress to the higher classes of prototype racing, LMP2 and ultimately Hypercar. LMP3 uses closed-cockpit chassis, which can be built by any licensed constructor. Cars eligible for

2430-455: The LMP category as rules have been changed to their benefit and to further push efficiency. The race is held in mid June, meaning the shortest night and very hot conditions for drivers, particularly in closed vehicles with poor ventilation. Rainy weather is common. The race begins in mid-afternoon and finishes the following day at the same hour the race started the previous day. Modern competitors often cover well over 5,000 km. The record

2511-540: The LMP regulations, as the ACO once again split the open-cockpit LMP class. The two new classes became known as "LMP900" and "LMP675", with the numbers denoting the minimum weight requirements (in kilograms) for each class. The LMP900s were to be more powerful and faster in top speed, but also heavier and more cumbersome. The LMP675s were to be smaller and more nimble, yet lack the top speed of the larger class. Both classes were intended to be able to compete for overall wins. Audi , Chrysler , Cadillac , and Panoz opted to use

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2592-583: The LMP2 and a new class—Hypercar. In the original version of the new ruleset, revealed in November 2020, only the power of the Gibson engine has been reduced—to 560 bhp. Right before the start of the season, the cars were further weakened, by trimming an additional 20 bhp to a total of 540 bhp. The minimum weight of the cars has also been increased by 20 kg and has been set at 950 kg. Furthermore, mirroring

2673-507: The LMP900 formula, while MG were the only major manufacturer to attempt the LMP675 class. The LMGTP class also continued, with Bentley being the only manufacturer to build a closed-cockpit prototype after the regulation changes in 2000. In 2017, in order to limit the costs, FIA introduced a new set of LMP2 regulations, which will be locked in through 2020, aiming for a significant power increase, to

2754-534: The RL-80 was driven by Craft/Evans and did not finish. This was repeated at the 1981 24 Hours of Le Mans with Craft/Evans driving the RL-81 and again failing to finish. This ended Dome's racing efforts with the Zero RL, although the company would continue racing with other cars. 24 hours of Le Mans The 24 Hours of Le Mans (French: 24 Heures du Mans ) is an endurance-focused sports car race held annually near

2835-522: The World Championship. The race is also known as a leg of the informal Triple Crown of Motorsport which links Formula One , IndyCar , and Sports car racing to represent a career achievement for drivers. Additionally, it is seen as a leg of the Triple Crown of endurance racing , which links the three largest sports car races together, with 12 Hours of Sebring and 24 Hours of Daytona forming

2916-467: The addition of more chicanes to the track to reduce speed reached. Racing teams must balance the demands of speed with the cars' ability to run for 24 hours without mechanical failure. The race is organized by the Automobile Club de l'Ouest (ACO). It is held on the Circuit de la Sarthe , composed of closed public roads and dedicated sections of a racing track. The 24 Hours of Le Mans was frequently part of

2997-509: The appearance of the car. The P2 used the same Nissan L28E engine as the first prototype, but the press reported that turbocharged Nissan or Toyota straight-6 engines were being considered for production cars. The car was shown at the Chicago and Los Angeles motor shows in 1979 and was positively reviewed by Road & Track magazine. When introduced, the Dome Zero P2 was estimated to have

3078-399: The bunched field at the start. This starting method inspired Porsche to locate the ignition key switch to the left of the steering wheel. In a left-hand drive car, this allowed the driver to use his left hand to start the engine and his right hand to put the transmission into gear, which in turn shaves off a few tenths of a second. Stirling Moss developed another method for speeding up

3159-491: The car with hopes of entering the car in 2018 and 2019, but ultimately did not compete due to complex issues with the car in 2018, and due to Don Panoz 's death suspending the program in 2019. The 2019 slot was also eyed by UK-based constructor Perrinn with the Project 424, an LMP1-based electric-powered car with an autonomous driving mode; however, this did not come to pass, and Garage 56 was left empty in both 2018 and 2019 due to

3240-427: The car. The car marked NASCAR's 75th anniversary, which coincided with the race's centenary. Chad Knaus , Johnson's crew chief during each of his Cup Series championships, was project manager, while the car bore #24 in honor of Hendrick vice chairman and former driver Jeff Gordon . Initially, there were no rules on the number of car drivers or how long they could drive. Although almost all teams used two drivers in

3321-616: The development of the Dome Zero P2 prototype, a car made specifically for export and sale in countries such as the United States. Hayashi believed this would also allow sales to the Japanese market without regulatory approval. At the time, it was possible for Japanese buyers to obtain "export only" vehicles via grey market re-imports . The P2 had large front and rear bumpers added (for the US market) and various other structural modifications which altered

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3402-405: The early decades, some Le Mans drivers such as Pierre Levegh and Eddie Hall attempted to run the race solo, hoping to save time by not having to change drivers. This practice was later banned. Until the 1980s, there were teams in which only two drivers competed, but by the end of the decade, the rules were changed to stipulate that at least three drivers must drive each car. By the 1990s, due to

3483-405: The famous race as to claim victory for their commercial partners). The race was a part of the World Sportscar Championship in every season from its inception in 1953 until its demise in 1992 except the 1956 , 1975 – 1979 and 1989 – 1990 seasons , and since 2012 the race has been the part of the FIA World Endurance Championship . However, Le Mans has always had a stronger reputation than

3564-532: The first time in five years. Two of the drivers, paralyzed from the waist down, became the first disabled teammates to compete in the history of the race. In 2022, Garage 56 was once again empty. For 2023, a modified NASCAR Cup Series Next Gen Chevrolet Camaro ZL1 stock car fielded by Hendrick Motorsports was the Garage 56 entry, with seven-times Cup champion Jimmie Johnson , 2009 Formula One world champion and NASCAR driver Jenson Button , and 2010 Le Mans overall and LMP1 winner Mike Rockenfeller driving

3645-440: The first to win them all in the same year. The "greatest distance" rule was modified with the introduction of a rolling start in 1971. Now, the car that completes the greatest distance as of the final lap's completion—where "greatest distance" is measured by the start/finish line for all competitors—wins. When two cars finish the same number of laps, their finishing order is determined by the faster overall completion time. This rule

3726-562: The fuel, but retired after a collision with an LMP1 car six hours into the race. In 2013, Garage 56 was given to the Swiss-designed hydrogen-fueled GreenGT H2, which was to be the first car without an internal combustion engine to compete at Le Mans. However, the car was pronounced unfit to take part in the race by the team a few days before the race. In 2016, the H2 went on to complete a single demonstration lap at Le Mans. The Nissan ZEOD RC ,

3807-423: The grid than Miles's, McLaren's car had covered the greatest distance over the 24 hours. With the margin of victory determined to be eight metres, McLaren and his co-driver, Chris Amon , were declared the winners. The decision cost Miles and Denny Hulme a victory. Miles had already won the other two endurance races at Sebring and Daytona. With a win at Le Mans, he would have become the first man to win all three and

3888-661: The high-profile duo. Gurney shook the bottle and sprayed everyone nearby. Gurney autographed and gave the bottle of champagne to Life photographer Flip Schulke , who used it as a lamp for years before returning it to Gurney. The first race was held on 26–27 May 1923 and has since been run annually in June with exceptions in 1956, when the race was held in July; 1968, when it was held in September due to nationwide political turmoil in May ; 2020, when it

3969-703: The importance of reliability. The oil crisis in the early 1970s led organizers to adopt a fuel economy formula known as Group C that limited the amount of fuel each car was allowed. Although it was later abandoned, fuel economy remains important as new fuel sources reduce the time spent during pit stops. Such technological innovations have had a trickle-down effect and can be incorporated into consumer cars. This has also led to faster and more exotic supercars as manufacturers seek to develop faster road cars in order to develop them into even faster GT cars. Additionally, hybrid systems (flywheel, super-capacitor, battery coupled with both petrol and diesel) have been championed in

4050-492: The manufacturer was unable to achieve Japanese road certification for the prototype. This led to the creation of a second prototype road car for the international market, the Zero P2. It is not clear what the exact reasons were for Zero's failure to achieve Japanese homologation. However, homologation rules were very strict at that time in Japan, and Dome did not have the funds to sustain the long and costly homologation procedure that

4131-696: The other legs. Since 1998, the American Le Mans Series (now the IMSA Weathertech Sports Car Championship ) has held an endurance race, along with the 12 hours of Sebring, every year called " Petit Le Mans ", as a 10-hour American version. In 2014, the Weathertech Sports Car Championship (a merger of the races at Sebring; Petit Le Mans in Braselton , Georgia; the 6 Hours of Watkins Glen in Watkins Glen , New York; and

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4212-516: The pits as possible. At the same time, the layout of the track required cars with better aerodynamics and stability at high speeds. While this was shared with Grand Prix racing, few tracks in Europe had straights of a length comparable to the Mulsanne . Additionally, because the road is public and thus not as meticulously maintained as permanent racing circuits, racing puts more strain on the parts, increasing

4293-410: The premier LMP1 category must have a roof due to safety concerns, with open-cockpit cars only permitted in the slightly slower LMP2 category. Since 2017, all prototype cars, LMP1 or LMP2, must have closed cockpits. Although all cars compete at the same time, as of 2021 there are separate classes. A prize is awarded to the winner of each class and the overall winner. The number of classes has varied over

4374-475: The public. The Dome Zero represented a technological leap forward for small-scale Japanese automakers. The unusual design of the Zero required an extensive engineering process, incorporating newly designed components and off-the-shelf items from other Japanese auto manufacturers. It had a wedge-shaped exterior reminiscent of the Lancia Stratos Zero , Lamborghini Countach and Ferrari Berlinetta Boxer . It

4455-530: The public. These are further broken down into two sub-classes: constructors' prototypes, privateer prototypes, and two subclasses of GT cars. Competing teams have had a wide variety of organizations, ranging from competition departments of road car manufacturers (eager to prove the supremacy of their products) to professional motor racing teams (representing their commercial backers, some of which are also car manufacturers who want to win without paying for their own teams) to amateur teams (racing as much to compete in

4536-454: The race has had different regulations for safety and competition reasons partly due to its length. For many decades, cars had to run at least an hour into the race before they could refill fluids for the car, such as oil or coolant, except for fuel. This was an attempt by the ACO to help increase efficiency and reliability. Those who could not last the first hour without replacing lost fluids risked disqualification. Another rule unique to Le Mans

4617-551: The race returning to its original start time of 16:00 in 2021, 2023 and 2024 respectively. The only exceptions were as follows: Initially, the car that covered the greatest distance from its starting position was the winner. This is known to have caught out the Ford team in 1966 . With a dominant 1–2 lead, the two cars slowed to allow for a photo opportunity at the finish line, with Ken Miles slightly ahead of Bruce McLaren . However, since McLaren's car had started much farther back on

4698-502: The race stewards. The race traditionally began with what became known as the Le Mans start , in which cars were lined up along the length of the pits. Until 1962, cars lined up by engine capacity. Beginning in 1963, qualifying times determined the lineup. The starting drivers stood on the opposite side of the front stretch. When the French flag dropped to signify the start, the drivers ran across

4779-399: The range of 150 horsepower (which is expected to lead to a four-second decrease in lap time at Le Mans). Gibson Technology is the exclusive engine supplier for LMP2, producing a four-litre normally-aspirated V8. Biofuels , specifically petrol with 10% ethanol and biodiesel ( BTL ), are allowed in both LMP1 and LMP2 categories. The fuel tank size and minimum weight for non-hybrid cars

4860-491: The same time, the ACO greatly altered their LMP classes. The smaller LMP2 class were briefly eliminated, while a new class of closed-cockpit prototypes was allowed in, known as "LMGTP" (Le Mans grand touring prototype). These cars were evolutions of production-based road cars that the ACO considered too advanced and too fast to fall under the GT class regulations, forcing the ACO to promote them as prototypes. In 2000, changes were made to

4941-475: The second generation, engines were upgraded to the 5.6-litre Nissan VK56 , increasing horsepower to 340 kW (455 hp). For 2025, the engines used in the class are set to be replaced with the twin-turbocharged 3.4-litre Toyota V35A , bringing about a power increase to 350 kW (470 hp). LMPC ( Le Mans Prototype Challenge ) was an earlier entry level class, introduced in 2009, consisting of competitors running identical Oreca FLM09 cars. The class

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5022-470: The series in which they compete. The FIA 's equivalent cars were referred to as Sports Racers (SR) or Sports Racing Prototypes (SRP). The American IMSA GT Championship termed their cars World Sports Cars (WSC), while the short-lived United States Road Racing Championship (USRRC) used the classic Can-Am (CA) name for their prototypes. Since 2004, most series have switched to referring to these cars as Le Mans Prototypes . The American Le Mans Series ,

5103-434: The smaller displacement production-based engines. Both classes were required to have open cockpits. However, LMP1 cars that year were just former Group C cars, some still with closed cockpits ( Toyota 94C-V , Courage C32 , Kremer K8 Spyder , Porsche 962C GTI , ALD C289 and Alpa LM). At the same time, the IMSA GT Championship announced the end of their closed cockpit GTP and Lights classes, deciding as well to replace them with

5184-484: The specialised racing cars used in Grand Prix motor racing . Over time, the competing vehicles evolved away from their publicly available road car roots. Today, the race comprises two classes: the purpose-built Sports prototypes which are also known as Le Mans Prototypes (LMP) and are the highest level in sports car racing, and the production-based Grand Touring (GT) cars which are similar to sports cars sold to

5265-420: The speeds of the cars and the strain it puts on drivers, additional rules to reduce driver fatigue mandated that drivers could not drive for over 240 minutes (over 4 hours) and that no one driver could run for over 840 minutes (14 hours) total. With careful management of driver stints, this makes it possible to complete the race with only two drivers (as Jeroen Bleekemolen and Cooper MacNeil did in 2014), although

5346-408: The start. His car was waiting with first gear already engaged. He switched the starter on when he jumped in without depressing the clutch. The starter motor immediately jerked the car forward, but the engine did not start due to low RPM. After a few seconds of motion, he pushed the clutch down, allowing the engine to speed up and start while the car was moving. Feeling this type of start was unsafe, in

5427-518: The successor to the IMSA GT Championship and the predecessor of the TUDOR United SportsCar Championship, officially referred to the cars simply as Prototypes (P1, P2, or PC). An LMP is commonly referred to as a Le Mans car in the media. The first use of what would become Le Mans Prototypes was at the 1992 24 Hours of Le Mans . In an attempt to increase the number of entrants beyond the small field of Group C competitors that

5508-608: The test day to the first weekend of June. Pre-qualification was eliminated in 2000, meaning that all competitors invited to the test would be allowed into the race. Since 2001 the Le Mans Legend races have also been part of the schedule, usually running exhibition races during qualifying days, a few hours prior to the sessions for the Le Mans entrants. From its inception, until 2008, the race started at 16:00 local time on Saturday, and consequently from 2009 to 2019, 2022 and come 2025 & hereafter it started at 15:00 local time, with

5589-478: The time of these lengthy pit stops. Drivers can get out of the car and be replaced by another driver during refuelling. Those rules are also applied in the FIA World Endurance Championship . There are various long-standing traditions at Le Mans, including the waving of the French tricolor to start the race. This is usually followed by a fly-over featuring jets trailing blue, white, and red smoke. A similar flag tradition

5670-466: The town of Le Mans , France . It is widely considered to be one of the world's most prestigious races, and is one of the races—along with the Monaco Grand Prix and Indianapolis 500 —that form the Triple Crown of Motorsport , and is also one of the races alongside the 24 Hours of Daytona and 12 Hours of Sebring that make up the informal Triple Crown of endurance racing . Run since 1923, it

5751-423: The track, entered and started their cars without assistance, and drove away. This became a safety issue in the late 1960s when some drivers ignored their safety harnesses, then a recent invention. This led to drivers running the first few laps either improperly harnessed due to attempting to do it while driving or sometimes not even harnessed at all, leading to several deaths when cars were involved in accidents due to

5832-443: The vast majority of teams still continue to use three drivers. In 2017, the driving time rules were further changed. If necessary, officials may require a drive time limit of 80 minutes of consecutive time behind the wheel and a minimum 30-minute rest break. The rule applies only if the air temperature is at least 32 °C (89.6 °F). Although it has been a part of the World Sportscar Championship for most of its existence,

5913-561: The years, but there are now three: Hypercar, LMP2, and LMGT3. Successor to the Le Mans Prototype 1 (LMP1) is the custom-built Hypercar (LMH or LMDh) class. It is the top class and debuted in 2021. The new technical regulations are intended to prevent cost escalations while enabling greater variety in technical approaches and car aesthetics. This is followed by the LMP2 class where teams are obliged to run one of four approved chassis—ORECA, Ligier, Dallara, or Multimatic/Riley—mated with

5994-487: Was rear mid-engine, rear-wheel-drive layout with a chassis of square-section steel tube. The 2.8L Nissan L28E SOHC straight-six engine produced 143 hp (107 kW; 145 PS). This engine was also used in the Datsun 280Z and 280ZX . With this engine and a curb weight of 920 kg (2,028 lb), the Dome Zero offered a power-to-weight ratio that matched contemporary Porsche models. The prototype also incorporated

6075-446: Was subject to adjustment to reduce the difference in performance between hybrid and non-hybrid cars. There were no limits on the number of cylinders for any type of engine. Bodywork was required to cover all mechanical elements of the car, so that they couldn't be visible when the car is viewed directly from the front, side, or top. The LMP1 cars were generally the most powerful, with higher straight-line speeds. The LMP1 category

6156-512: Was moved to 19–20 September due to the COVID-19 outbreak; and 2021, when it was moved to 21–22 August. The race has been cancelled ten times—in 1936 (a labour strike during the Great Depression ) and between 1940 and 1948 (World War II). The race usually takes place on the second weekend of June, with qualifying and practice taking place on the Wednesday and Thursday before the race, following

6237-441: Was powered by a Cosworth DFV V8 engine with an aluminum twin-tube monocoque chassis . The dimensions of the car were unusual for a Le Mans prototype , with a very narrow track (52.7 in (1,340 mm)) and long body (16.4 ft (5.0 m)). It is unclear the degree to which the Zero RL was derived from the road Zero, as chassis, body and engine all substantially differed from the road version. The Zero RL first raced at

6318-429: Was retired at the end of the 2020 season, replaced by a new top class of the endurance racing: Hypercar . From 2017, in order to limit the costs, FIA introduced a new set of regulations, which will be locked in through 2025. The rules allow a significant power increase (150 horsepower) which is expected to lead to a four-second decrease in lap time at Le Mans. Gibson Technology is the exclusive engine supplier, producing

6399-510: Was routine for well-funded mainstream Japanese auto makers. The Zero's appearance at the Geneva Motor Show resulted in Dome signing several deals with toy manufacturers to license the car's appearance. The funding from these deals enabled Dome to expand their headquarters and continue to develop road and racing cars. The original prototype's failure to achieve Japanese market homologation led to

6480-455: Was the dominant form of motorsport throughout Europe, Le Mans was designed to present a different test. Instead of focusing on the ability of a car company to build the fastest machines, the 24 Hours of Le Mans would concentrate on the ability of manufacturers to build sporty yet reliable cars. This encouraged innovation in producing reliable and fuel-efficient vehicles , because endurance racing requires cars that last and spend as little time in

6561-401: Was used in the 2011 24 Hours of Le Mans to determine the race winner. The top two finishers completed 355 laps, with only 13 seconds difference between them. Although "greatest distance run" determines the provisional order of finishers, additional requirements must be met for a car to be classified. All classification requirements hold except in exceptional circumstances, as determined by

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