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Mercedes-AMG develops new 5.5-litre V8 engine

ABR Staff Writer Published 22 July 2011

Mercedes AMG has developed a new 5.5-liter V8 engine with a cylinder shut-off system designed to save fuel.

The new engine named M152 combines powerful eight-cylinder performance with the economical fuel consumption of a four-cylinder and is developed using advanced technology from Formula-1 racing.

The new engine will be debuted under the hood of the 2012 SLK55 AMG roadster at the International Motor Show in Frankfurt in September.

The company said that in the eight-cylinder racing engines developing around 750 hp, cylinder shut-off is likewise used primarily to save fuel.

The new M152 engine is designed to develop 314 KW power and 540 N-m of torque under ordinary conditions, it uses 30% less fuel than the current 5.5-liter AMG V8 engine .

Furthermore, the controlled efficiency stop/start function, which has standard equipment in the new SLK 55 AMG, further contributes to the low fuel consumption.