Who Says Green Has To Be Boring? AMG Releases Details Of Smaller Twin Turbo 5.5 Liter V8 Cranking Out 537HP.

AMG has revealed a new twin-turbo 5.5-litre V8 engine, which will be available in the Mercedes S63 AMG from this summer.

Despite having a smaller capacity than the 6.2-litre V8 it replaces, the new unit, codenamed M157, produces more power and more torque and promises improved fuel efficiency.

A total of 537bhp is produced at 5500rpm (versus 518bhp at 6800rpm in the 6.2 V8) and 590lb ft of torque is also on offer between 2000 and 4500rpm, which is considerably more than the 464lb ft at 5200rpm produced in the current engine.

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