V10 high-rev engine.

The prize-winning V10 high-rev naturally-aspirated engine uses the BMW M high-rev speed concept to produce thrilling performance, setting the benchmark in its class. It powers the BMW M5 Sedan and Touring, as well as the BMW M6 Coupé and Convertible. Its enormous power output of 373 kW (507 hp) is produced from a displacement of just 4,999 ccm. Top torque is a mighty 520 Nm at 6,100 rpm.

With engine speeds reaching 7,750 rpm, the high-rev concept is technologically extremely demanding. However, it enables supremely sporting and more reliable responsiveness, better performance and greater efficiency than engines with turbo-charging or with larger displacement, and is central to the BMW M engineering philosophy.
The prize-wining V10 engine is designed with an extremely lightweight crankcase and individually-forged lightweight alloy cylinder heads. Each cylinder is equipped with its own individual throttle valve which is electronically controlled for precise metering of air input, and offers superior performance to a single throttle-valve approach. The individual throttle valve is another key characteristic of BMW M engines.
To cope with the very high acceleration forces produced by such a powerful engine, the V10 engine features a lateral force-controlled oil supply that activates one of two electronic oil pumps, ensuring perfect lubrication even in the most extreme situations.
Variable double-VANOS camshaft control ensures an optimum cylinder charge cycle, resulting in enhanced performance, an improved torque curve and optimum responsiveness.
A particular innovation in the V10: an intelligent ionic-current control system in each of the cylinders monitors the combustion process and is able to sense and correct any tendency to engine knock or misfiring.

Fuel consumption / CO2 emissions

Combined fuel consumption: 14.3 to 14.7 l/100 km
CO2 emissions: 342 to 352 g/km

Further information about the official fuel consumption and the official specific CO2 emissions for new passenger automobiles can be obtained from the "The Passenger Car (Fuel Consumption and CO2 Emissions Information) Regulations", which are available free of charge at all sales outlets and from this address: DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany.