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Meet the new Mercedes-Benz SL400

This is our first photo of the upcoming Mercedes-Benz SL400 luxury roadster, a model that effectively replaces the SL350 as part of a series of subtle changes brought to the SL lineup. The move aims to goose sales of the luxury roadster two years after it first hit showrooms. The SL400 is powered by Mercedes-Benz's twin-turbocharged 3.0-liter V6 direct-injection gasoline engine unveiled in the E400 early last year.

Porsche Cayenne (2011) undisguised

The Porsche Cayenne 2010 / 2011 undisguised is ready for a launch at Geneva in March We’ve seen spy shots of the 2011 Porsche Cayenne on a pretty regular basis over the last year as Porsche works to fettle the new Cayenne before a launch at the Geneva Motor Show in March. But with that debut looming we now see shots of the new Porsche Cayenne out and about all but undisguised. Porsche are attempting to address criticisms of the current Cayenne by making the new Cayenne a much more road-focused car and by shedding weight from what is, by any standards, a heavyweight SUV.

Driven: BMW Z4

Loved as it may be by its loyal fanbase, the outgoing Z4 was always something of a mixed bag in terms of design. While the car's classic long-bonnet, cab-back profile and short overhangs should have pleased the eye, the BMW's sheer frontal mass made its proportions seem out of balance. The application of the company's then-new ‘flame surfacing' form language also generated a visual business that seemed out of place on something as conceptually simple as a roadster.