Air restrictors are used with default values for specific engine capacities.Īt the 2015 24 Hours of Le Mans, the ACO announced a range of changes for the LM GTE class for the 2016 season. The Endurance Committee of the ACO has the absolute right to modify the Balance of Performance between LM GTE cars through adjusting the weight, engine or aerodynamics. GTE-Am cars must be at least one year old or be built to the previous year's spec, and have limits on the qualification of drivers allowed in the lineup. There are also minor requirements that are holdovers from the earlier era of Le Mans, such as requiring at least 150 cubic decimetres of luggage space.Īt Le Mans, LM GTE is divided into two classes: GTE-Pro and GTE-Am. Aerodynamic devices such as spoilers are heavily regulated. Overall, the technical regulations are focused on keeping LM GTE cars relatively close to road cars in terms of parts and dimensions. Manufacturers can also apply for waivers to allow the homologation of cars or parts that would normally be banned by the rules. If the road car is upgraded with a new part, that part can also be used on the LM GTE car through updating the homologation. Small aerodynamic modifications are allowed for Le Mans each year. Brand new cars are allowed one extra set of modifications in the first year of competition. All cars must also have rear-view cameras in addition to side mirrors.ġ,245 kilograms (2,745 lb) (possibly subject to Balance of Performance) including driver, fuel, helmet and liquidsĢ,050 millimetres (81 in) (excluding rear view mirrors)Ĭars are allowed one set of modifications every two years. Gearboxes are limited to six forward gears. Four-wheel drive is banned while engine-based traction control is allowed. To distinguish from faster Le Mans Prototypes at night, LM GTE cars must use yellow headlights (not in WEC). Cars must have working lights and windshield wipers at all times. The minimum weight is 1,245 kg including driver, fuel, helmet and liquids. The SRT Viper is granted a special waiver to 8.0L. The engine displacement is limited to 5.5L naturally aspirated or 4.0L turbo/supercharged. Cars with carbon cockpits (that are not directly attached to the suspension) are allowed. Carbon fiber, titanium and magnesium are banned except for special parts like spoilers or wheels. The engine must be used in a production car while this is usually the engine from the road car, the ACO has made exceptions for cars like the BMW Z4 GTE which use engines from other models.
The car must have an official launch campaign and sales network. The cars will be eligible to race when 100 road cars for big manufacturers or 25 road cars for small manufacturers are produced. In order to be eligible a big manufacturer must produce at least one car a week or a small manufacturer one car a month. The car must have "an aptitude for sport with 2 doors, 2 or 2+2 seats, opened or closed, which can be used perfectly legally on the open road and available for sale." The ACO modifies its regulations for “small manufacturers” (less than 2000 cars produced a year). The ACO has defined limits and requirements for the LM GTE category to ensure that cars are legitimately production-based. In the 2018/19 season, the most competitive LM GTE cars are the Porsche 911 RSR, the Ferrari 488 GTE Evo and the Ford GT (by points achieved). In 2015, the two dominating cars were the Porsche 911 RSR and the Ferrari 458 Italia GT2 (by points achieved). Other less successful models in the early 2010s were the Jaguar XKR, Lamborghini Gallardo, Lotus Evora and Ford GT. The new main rivals for the Porsche 911 were the Ferrari 458 Italia, Aston Martin V8 Vantage, Chevrolet Corvette, BMW M3, BMW Z4 (E89) and SRT Viper. Since the GT1 class was dropped from ACO competitions for the 2011 season, the GT2 class was renamed LM GTE in Europe and GT in the United States.
Other models entered were the Aston Martin V8 Vantage, Morgan Aero 8, Spyker C8 and TVR Tuscan. Originally, it was dominated by the Porsche 911 GT3 in its R, RS and RSR versions, but the Ferrari 360 Modena, Ferrari F430 and Panoz Esperante were also successful, as well as the BMW M3 in the United States. In 2005, the class was renamed GT2, below the faster GT1 class (formerly known as GT).
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The class, derived from the former 'GT3' class in 1998, debuted in 1999 under the name of 'GT' in 24 Hours of Le Mans, American Le Mans Series and European Le Mans Series, and as 'N-GT' in the FIA GT Championship.
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