CA24b, 24h Le Mans 2011
From the Slot.it Team: 'The R18 TDI is a sportscar designed in 2011 by Audi, according to the Lmp1 regulations, to be engaged in the Le Mans 24 Hours and the World Endurance Championship. It is a closed cockpit car, a choice made as a consequence of the rules change introduced in 2011.
Each area of this car is designed for extreme reduction of weight; the minimum value of 900 kg required by regulations is reached by using ballasts. The carbon monocoque chassis is made in a single-piece; this solution is very light, but also very safe. The gearbox is 6-speeds, electrically actuated, built with large use of carbon fibre composite material. The whole headlights are made with LEDs.
The diesel engine is a V6, 120°, 3.7 liters displacement; fuel tank capacity is 65 liters. The engine uses a single turbo and exhaust pipe situated below the fin. The maximum power is 540 hp with air restric- tions according to the rules, and the top speed about 335 kph. Audi was engaged in the 2011 Le Mans 24 hour- race with 3 R18s. The number 1 was driven by Timo Bernhard, Romain Dumas and Mike Rockenfeller.'
From Wikipedia: 'The Audi R18 is a Le Mans Prototype (LMP) racing car constructed by the German car manufacturer Audi AG. It is the successor to the Audi R15 TDI. Like its predecessor, the R18 uses a TDI turbocharged diesel engine but with a reduced capacity of 3.7 litres and in a V6 configuration. For the first time since the 1999 R8C, Audi's Le Mans prototype uses a closed cockpit design. The R18 is also the first racing car from Audi to feature hybrid power.'