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First Sight: Mercedes-Benz SL

The new high-tech, low weight Mercedes SL roadster receives its official global unveil next week in Detroit but Car Design News got an early peek of the final production car and had a chat with its designers at Mercedes' US advanced design studio in Carlsbad, California back in November. "We want to get back to clean, long-lasting design," director of Mercedes global advanced design and SL project leader, Steffen Kohl told CDN at the exclusive preview of the sixth-generation model. "So the new SL is long, sleek and still full of tension in the feature lines but less wedgy." In a short presentation Kohl felt all SLs became successfully iconic in their times because they followed two key rules – ‘sensuality' and ‘cleanness' – but alluded that the first rule may have been lost in more recent eras.

Renault's four electric Frankfurt stars: the teaser

Renault will show off four electric cars at the 2009 Frankfurt motor show By Tim Pollard First Official Pictures 10 September 2009 17:18 Renault today trailed its electric car debutants for next week's Frankfurt motor show – revealing the four battery cars that will hog the limelight in Germany. The Renault zero-emissions cars will be shown in full on Tuesday 15 September 2009, but this image gives us a taster for what's to come.Carlos Ghosn, Renault's chief exec, will unveil four new electric cars, seen here for the first time. This overhead shot confirms that Renault will unveil a range of EVs – from a tiny city car through a supermini and van all the way up to what looks like an electric saloon car.Electric cars: the theme of FrankfurtPlenty of manufacturers will be showing off electric or petrol-electric cars at Frankfurt's IAA this year: there's an electric Merc SLS and Hyundai i10, plus more hybrids than you could shake a socket at – including debuts from Lexus, Peugeot and BMW.

David Brown’s Speedback is an Aston Martin DB5 for 2014 (video)

The David Brown Automotive Speedback (pictured) revaled ahead of Monaco debut Last month we revealed that the David Brown Automotive’s take on a classic, luxury British Sports Car would be based on the underpinnings of the Jaguar XKR, and we’d expected another classic E-type creation like the Lyonheart K being built by Envisage (as is the David Brown car). In fact, the David Brown Speedback – for that is what David Brown is calling his company’s creation – looks instead like a classic Aston Martin from the 1960s – think DB5 or DB6 – with perhaps a few hints of Maserati and Ferrari from the same era too. And it looks great.