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A high-performance sports car, a roadgoing vehicle that could be said to have inherited the genes of the Audi R8, three-times winner of the Le Mans 24-Hours race: Audi reveals its Le Mans quattro concept study. This fascinating driving machine is a synthesis of the experience gained from numerous racing triumphs, allied to advanced design and Audi's technical competence - which has in turn become synonymous for Audi's technological leadership (Vorsprung durch Technik) on the racetrack and the road alike.
A flow of power as if from a turbine, a high maximum torque curve and a fascinating sound: the basic features of a perfect sports-car engine. This 5.0-litre V10 engine with its twin turbochargers is just as fascinating in the potential it offers as in its suitability for day-to-day use. Its bite in every operating range and its unrivalled willingness to rev up to high speeds are truly impressive. This ten-cylinder engine has 40 valves, operated by four overhead camshafts. Both the inlet and exhaust valves have continuously variable opening periods to ensure optimum gas flow in all engine-speed ranges.
Two turbochargers driven from the exhaust and located behind the engine boost the pressure of the combustion air to a maximum of 2.0 bar before it is forced into the engine. The charge-air intercoolers are mounted above the engine. They are fed with air through an inlet on the body side and have an additional low-temperature cooling water circuit. The two oil coolers are at the side of the engine, well positioned in the airflow behind the side inlets.
Source: Audi Press Release