Audi A3 TDI clubsport quattro
After the stunning R8 TDI Le Mans, which boasts a 6.0-liter V12 diesel engine that produces 500 horsepower and 738 lb-ft of torque, Audi is presenting yet another diesel-engined race car concept. The A3 TDI clubsport quattro is powered by a turbocharged 2.0-liter, common-rail inline-4 diesel engine. It produces 224 horsepower and a stump-pulling 332 lb-ft of torque, and is mated to a 6-speed manual transmission. All this power is directed to all four wheels via Audi's quattro system.