From Wikipedia, the free encyclopedia
ALMS GT2 cars competing at Road America in 2007

Grand Touring Endurance, shortened to GTE, is a set of regulations maintained by the Automobile Club de l'Ouest (ACO) and IMSA for grand tourer racing cars used in the 24 Hours of Le Mans, 24 hours of Daytona GTLM, and its associated series. The class was formerly known as simply Group GT (Group N-GT in the FIA GT Championship) between 1999 and 2004, and later referred to as Group GT2 between 2005 and 2011. The GT2 name has since been revived for a different set of regulations.

2nd-gen Ford GT LM GTE
2013 LM GTE Viper GTS-R


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, and in 2000 as 'GTU' in the Grand-Am Rolex Sports Car Series. In 2005, the class was renamed GT2, below the faster GT1 class (formerly known as GT). 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. Other models entered were the Aston Martin V8 Vantage, Morgan Aero 8, Spyker C8 and TVR Tuscan.

Ferrari F430 GT2

After the GT1 class was dropped from ACO competitions for the 2011 season, the GT2 class was renamed as LM GTE in Europe and as GT in the United States. 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. Other less successful models in the early 2010s were the Jaguar XKR, Lamborghini Gallardo, Lotus Evora and Ford GT.

Flying Lizard Motorsport's Porsche 997 GT3-RSR at the 2008 Utah Grand Prix

In 2015, the two dominating cars were the Porsche 911 RSR and the Ferrari 458 Italia GT2 (by points achieved).

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 2021, IMSA announced that the GTLM class would be replaced with a GT3 based GTD pro class.[1] The ACO also announced that GTE in the WEC would also be replaced by GT3 in 2024, with the GTE Pro class seeing its final race in 2022 and the GTE Am class in 2023.[2]


Class plates of LM GTE categories
LM GTE Pro class plate as used in FIA World Endurance Championship, with green wordmark and side colour
LM GTE Am class plate as used in FIA World Endurance Championship, with orange wordmark and side colour

The ACO has defined limits and requirements for the LM GTE category to ensure that cars are legitimately production-based. 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."[3] The ACO modifies its regulations for “small manufacturers” (less than 2000 cars produced a year). 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 cars will be eligible to race when 100 road cars for big manufacturers or 25 road cars for small manufacturers are produced. The car must have an official launch campaign and sales network. 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. Carbon fiber, titanium and magnesium are banned except for special parts like spoilers or wheels. Cars with carbon cockpits (that are not directly attached to the suspension) are allowed. The engine displacement is limited to 5.5L naturally aspirated or 4.0L turbo/supercharged. The SRT Viper is granted a special waiver to 8.0L. The minimum weight is 1,245 kg including driver, fuel, helmet and liquids. Cars must have working lights and windshield wipers at all times. To distinguish from faster Le Mans Prototypes at night, LM GTE cars must use yellow headlights (not in WEC). Four-wheel drive is banned while engine-based traction control is allowed. Gearboxes are limited to six forward gears. All cars must also have rear-view cameras in addition to side mirrors.

Minimum weight 1,245 kilograms (2,745 lb) (possibly subject to Balance of Performance) including driver, fuel, helmet and liquids
Maximum length

4,800 millimetres (190 in)

Maximum width

2,050 millimetres (81 in) (excluding rear view mirrors)

Engine displacement naturally-aspirated:
5.5 litres (340 in3)

turbocharged/supercharged: 4.0 litres (240 in3)

Fuel tank size

90 litres (24 US gal) (subject to BoP)


free composition

2 to 3 drivers, at least

1 Bronze plus
1 Bronze or Silver

Cars are allowed one set of modifications every two years. Brand new cars are allowed one extra set of modifications in the first year of competition. Small aerodynamic modifications are allowed for Le Mans each year. 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. Manufacturers can also apply for waivers to allow the homologation of cars or parts that would normally be banned by the rules.

Overall, the technical regulations are focused on keeping LM GTE cars relatively close to road cars in terms of parts and dimensions. Aerodynamic devices such as spoilers are heavily regulated. 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.

At Le Mans, LM GTE is divided into two classes: GTE-Pro and GTE-Am. 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.

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. Air restrictors are used with default values for specific engine capacities.

2016 updates[edit]

At the 2015 24 Hours of Le Mans, the ACO announced a range of changes for the LM GTE class for the 2016 season. The aim of the changes is to increase the performance of the cars relative to the GT3-spec machinery that they compete against in certain series, whilst reducing cost and improving the safety of the cars. The regulations will be less restrictive, and so there will be a reduced reliance on waivers to allow certain cars to compete. One example of this is the increased freedom of aerodynamic development within specific regions of the car.[5] The new cars will be able to compete in LM GTE Pro from 2016 alongside the 'old' specification of car, before becoming available for LM GTE Am in 2017. In 2018, the 'old' specification of car will be out of competition.

Replacement of GTE Regulations[edit]

Autosport magazine reported that on 20 August 2021 that the ACO had announced that they will be dropping the GTE class in favour of GT3 cars from the 2024 season onwards. "The current GTE Pro and GTE Am classes will remain in place for the 2022 and 2023 WEC seasons, including Le Mans, following the decline of GTE racing with only four cars in the WEC Championship and three in the IMSA WeatherTech SportsCar Championship in 2021."[6]

List of LM GTE cars[edit]

Manufacturer Model Developer Photo Year Notes
United Kingdom Aston Martin V8 Vantage GT2 Prodrive PLM 2011 60 Aston Martin.jpg 2008–2011
V8 Vantage GTE Aston Martin Racing V8 - Aston Martin Vantage V8 -99 (18245422033).jpg 2012–2019 Second generation Vantage GTE, includes Vantage GTE Upgrades
V8 Vantage AMR GTE 2019 4 Hours of Silverstone 98 (48664316048).jpg 2018-2023 Second-generation Vantage
Germany BMW M3 GTR (E36) BMW Motorsport BMW E36 GTR.jpg 1999–2000
M3 GTR (E46) BMW M3 GTR Munich 2017.jpg 2001–2005
M3 GT2 (E92) BMW M3 GT2 Art Car-Le Mans 2010.jpg 2009–2012
Z4 GTE (E89) Sebring 12 hrs 2014 - -56 GT Le Mans - RLL BMW Z4 - Mueller - Edwards - Werner.jpg 2013–2015
M6 GTLM (F13) BMW M6 GTLM 2017 PLM.jpg 2016–2017
M8 GTE (F92) 2018 6 Hours of Fuji 82 (46101785691).jpg 2018-2021
United States Chevrolet C6.R Pratt & Miller Le Mans 2013 (9347511710).jpg 2009–2013
C7.R 24 Heures Le Mans 2016 (27190307204).jpg 2014–2019
C8.R 2020 Corvette C8.R at Amelia Island Concours d’Elegance.jpg 2020-2023
United States Dodge SRT SRT Viper GTS-R Riley Technologies Viper 93 611.jpg 2012–2015
Italy Ferrari 360 GT Michelotto [it] Ferrari 360 at Daytona.jpg 2001–2005
F430 GTC JMW Ferrari 92.png 2006–2010
458 Italia GTC 2013 24 Hours of Le Mans 5180 (9118759833).jpg 2011–2015
488 GTE Clearwater Racing Ferrari 488 GTE Mok Silverstone 2018 Village.jpg 2016–2023 Includes 488 GTE Evo
United States Ford GT (Mk.VII) Doran Racing Robertson Ford GT ALMS 2010 Northeast Grand Prix 02.jpg 2008–2011
GT (Mk.VIII) Ford Performance No. 85 Keating Motorsports Ford GT - 2019 24 Hours of Le Mans.jpg 2016–2019
United Kingdom Jaguar XKR GT2 RSR Racing PLM 2011 98 RSR Jaguar.jpg 2010–2011
Italy Lamborghini Gallardo LP 560 GT2 Reiter Engineering Lamborghini Gallardo Bouchut Spa2009.jpg 2009–2011
United Kingdom Lotus Evora GTE Lotus Sport Lotusevora-jetallaince-lm-2011.jpg 2011–2012
United States Panoz Esperante GT-LM Panoz Auto Development Panos GT2 IMG 3721.jpg 2006–2007
Abruzzi GT2 Panoz Auto Development "The Panos" ALMS - Grandprix of Mosport 2011 (5976950208).jpg 2011
Germany Porsche 911 GT3 R (996) Porsche motorsport Porsche 996 GT3-R leads Porsche 996 GT3-R & Porsche 996 GT3-R (52506650338).jpg 1999–2001
911 GT3 RS (996) Porsche 911 GT3 RS (10544145223).jpg 2001
911 GT3 Cup (996) Lietz PCC Oschersleben 2005.jpg 1999–2004 996.I & 996.II generations 911 Cup
911 GT3 RSR (996) Flying Lizard Laguna.jpg 2004-2005
911 GT3 RSR (997) PLM 2011 045 Flying Lizard Porsche.jpg 2006–2012 997.I & 997.II generations 911 RSR
911 RSR (991.I) Porsche North America 911 - Petit Le Mans 2015.jpg 2013–2016 First 991 generation 911 RSR
911 RSR (991.II) Dempsey-Proton Racing Porsche 911 RSR Campbell Silverstone 2018.jpg 2017–2019 Second 991 generation 911 RSR
911 RSR-19 (991.II) 2019 4 Hours of Silverstone 91 (48664317523).jpg 2019-2023 Third generation 911 RSR
Netherlands Spyker C8 GT2-R Spyker Squadron Speedy Spyker Spa.jpg 2006–2010 Includes C8 Spyder GT2-R and C8 Laviolette GT2-R

Series which use LM GTE cars[edit]

See also[edit]


  1. ^ Malsher-Lopez, David (28 January 2021). "GTD Pro for GT3 cars to replace IMSA's GT Le Mans class in 2022". www.autosport.com. Retrieved 29 March 2022.
  2. ^ Cleeren, Filip (20 August 2021). "GT3 cars to replace GTE class at Le Mans from 2024". www.autosport.com. Retrieved 29 March 2022.
  3. ^ "Technical Regulations for Grand Touring Cars" (PDF). Automobile Club de l'Ouest. Archived from the original (PDF) on 18 September 2013. Retrieved 3 January 2014.
  4. ^ "Classes - FIA WEC". fiawec.com. Retrieved 17 March 2019.
  5. ^ FIA WEC: 2016 GTE Regulations, Key Points, Summary of New Regulations From DSC.
  6. ^ "GT3 cars to replace GTE class at le Mans from 2024".
  7. ^ Hergault, Julien (11 June 2013). "24 Hours of Le Mans: Introduction to the LM GTE Pro Class". www.24h‑lemans.com. Archived from the original on 4 March 2016. Retrieved 31 March 2022.
  8. ^ "Classes". World Endurance Championship. Archived from the original on 21 December 2014. Retrieved 3 January 2014.
  9. ^ "Category". Automobile Club de l'Ouest. Retrieved 3 January 2014.
  10. ^ "The different classes". Automobile Club de l'Ouest. Archived from the original on 17 February 2014. Retrieved 3 January 2014.

External links[edit]

  • LM GTE regulations as of March 8, 2013 [1]