Classes – Two LMP cars battle for position

In the FIA WEC, four different categories of car compete in four separate classes. The LMP1 and LMP2 classes are for purpose-built prototypes, whereas road-related GT cars race in the LMGTE Pro and LMGTE Am categories. Here you can find all the information on each separate class at a glance.

Special features

  • All factory-entered vehicles must have a hybrid power unit.
  • Only closed-cockpit cars are permitted in LMP1
  • Hybrid cars must have been homologated (officially approved for the relevant classes) on or after 1 January 2018
  • Non-hybrid cars must have been homologated on or after 1 January 2014.

Minimum weight

  • Works teams = 875 kg
  • Privateers = 855 kg

Fuel capacity

Works teams:

  • Petrol: 62.5 litres
  • Diesel: 49.9 litres

Privateers:

  • Petrol: 67.4 litres
  • Diesel: 53.7 litres

Engine restrictions

LMP1 cars can be powered by any engine that meets the following minimum requirements:

  • Only four-stroke engines with reciprocating pistons are permitted.
  • The primary drive must be a petrol or diesel engine.
  • Works teams are free to choose any cubic capacity
  • Engines in privateer cars may not have a cubic capacity larger than 5,500 cm³.

Car length: Maximum of 4,650 mm, including rear wing.

Car width: Minimum of 1,800 mm, maximum of 1,900mm

Car height: Maximum of 1,050 mm, including tyres and antenna

Wheelbase: The wheelbase can be freely selected but is fixed for the season with the vehicle’s homologation and may not be changed subsequently.

Driver restrictions: Bronze drivers may not be used.

Number panel: All vehicles must have a red number panel with a white number to show which of the classes they are racing in.

Special features:

  • All LMP2 cars must have been built by one of the four certified chassis manufacturers.
  • All teams must use the spec Gibson engine.
  • Only closed-cockpit cars are permitted in the LMP2 class.
  • All teams must be independent and may not engage in partnerships or receive support from automotive manufacturers and engine constructors.
  • Only cars homologated on or after 1 January 2017 are permitted.

Minimum weight: 900 kg

Fuel capacity: 75 litres

Engine restrictions: Since the 2017 season, all LMP2 competitors must use the spec engine provided for the LMP2 class. Other engines and power units may not be used.

Car length: Maximum of 4,650 mm, including rear wing

Car width: Minimum of 2,000 mm

Car height: Maximum of 1,050 mm, including tyres and antenna

Wheelbase: The wheelbase can be freely selected but is fixed for the season with the vehicle’s homologation and may not be changed subsequently.

Driver restrictions:

  • A minimum of two drivers are required in LMP2 but no more than three are permitted per car.
  • Each car must contain at least one bronze- or silver-rated driver.

Number panel: All vehicles must have a blue number panel with a white number to show which of the classes they are racing in.

Special features:

  • Each team may only enter two cars.
  • The road-going version of the car must have been available to buy for at least one year.
  • Only GTE vehicles homologated on or after 1 January 2016 may be entered.

Minimum weight: 1,245 kg (excluding drivers and fuel)

Fuel capacity: 90 litres

Engine restrictions:

  • Normally aspirated engine: Maximum cubic capacity of 5,500 cm³
  • Turbo engine: Maximum cubic capacity of 4,000 cm³

Car width: Maximum of 2,050 mm (not including wing mirrors)

Car length: Maximum of 4,800 mm

Driver restrictions: Each car must have a minimum of two drivers.

Number panel: All vehicles must have a green number panel with a white number to show which of the classes they are racing in.

Special features:

  • Each team may only enter two cars.
  • The car must have raced in LMGTE Pro for at least one year.
  • Only GTE vehicles homologated on or after 1 January 2016 may be entered.

Minimum weight: 1,245 kg (excluding driver and fuel)

Fuel capacity: 90 litres

Engine restrictions:

  • Normally aspirated engine: Maximum cubic capacity of 5,500 cm³
  • Turbo engine: Maximum cubic capacity of 4,000 cm³

Car width: Maximum of 2,050 mm (not including wing mirrors)

Car length: Maximum of 4,800 mm

Driver restrictions:

  • A minimum of two drivers are required in LMGTE Am but no more than three are permitted per car.
  • Each team must have at least one bronze- and one bronze- or silver-rated driver.

Number panel: All vehicles must have an orange number panel with a white number to show which of the classes they are racing in.

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