TOP Big-banger engines

1BENTLEY MULSANNE

6750cc Gotta love the way Bentley manages the biggest engine on sale by just 1cc, and that itís over arch-rival Rolls. With 1020Nm, Mulsanne also wins the torque arm-wrestle.

2ROLLS-ROYC PHANTOM

E 6749cc Big NA engine with a classic Rolls capacity, but in a V12 rather than a V8.

The more affordable Ghost V12 wins the power war thanks to twin turbos, though.

3ROLLS-ROYC WRAITH

E 6592cc It may be the tiddler of the Rolls family, but that doesnít mean it takes baby steps under the bonnet. Still a 465kW twin-turbo V12 at heart, too.

4LAMBORGHINI AVENTADOR

6498cc That it makes peak power at 8250rpm gives you an idea of the ferocity of Lamboís flagship. Upcoming SV750 will be the most powerful, with 552kW.

JEEP GRAND CHEROKEE J SRT8

6417cc The Americans have always had a simple formula for more power and it shines brightly in the show-and-go SRT8. Just donít expect to go off-road in one.