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Mercedes’ AMG division unveils new twin-turbo V8

Those obsessed with torque bemoaned Mercedes’ high-revving 6.2-litre V8 when it was launched in 2005, but just as the world has come to accept the naturally aspirated engine, the company has now unveiled a new twin-turbo 5.5-litre V8. Up to 563bhp – which is the same as the SLS AMG – and 663lb ft, which is much more than the 479lb ft the modern-day Gullwing supercar manages. The engine is an all-new 5.5-litre V8 (5461cc to be exact) with direct-injection technology, an aluminium crankcase and two turbochargers.

Buick plans to add a crossover in 2010, a plug-in hybrid in 2011

Buick's lineup is growing--it's getting a new five-passenger crossover in 2010, with a plug-in hybrid following in 2011. The yet-to-be-named vehicle will be smaller than the Enclave and uses a different version of the platform that underpins the GMC Terrain and the Chevrolet Equinox. The move signals General Motors' renewed commitment to its venerable Buick brand, fortifying it with cutting-edge technology and fresh sheetmetal as the company tries to be competitive with four core brands.

Audi Q5 (2008) unveiled

By Tim Pollard First Official Pictures 19 April 2008 12:00 A decade after rival BMW, Audi is finally joining the mid-sized SUV party. The new Q5, unveiled at this weekend's Beijing motor show, is Ingolstadt's answer to its hometown rival the X3, and is based on the oily bits from the A4. Which speaks volumes about its intent.Unsurprisingly, that means it's aimed squarely at on-road performance, where it will shuttle five occupants around in - you'd imagine - saloon car comfort.