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Mercedes C63 AMG 'Edition 507' (2013) first official pictures

Mercedes has squeezed another 50bhp out of the C63 AMG, creating the 500bhp 'Edition 507' range. The power bump comes courtesy of forged pistons new connecting rods and a lightweight crankshaft inherited from the £160,000 SLS AMG supercar. Why is this special C63 AMG called the 'Edition 507'?

Mercedes S-Class Convertible confirmed

The Mercedes S-Class Convertible will be based on the S-Class Coupe (pictured) The new Mercedes S-Class has already arrived, and we’ve also got the new S-Class Coupe (in concept form, at least) with the next variant of the new S-Class now looking likely to be the Mercedes S-Class Convertible. We’ve known since 2011 that Mercedes were planning to chop the top off the S-Class for the first time since the W111 S-Class in the 1960s, but this is the first time anyone from Mercedes has officially confirmed it. Thomas Weber, Mercedes’ product development boss, has told Automotive News that the S-Class Convertible is on the way and will be based on the new S-Class Coupe.

Ariel Atom 3.5 (2012) first official pictures

It's difficult for Ariel to come up with a mid-life refresh for its cars - there simply aren't that many bits to fiddle with in the first place. Still, the boys from Somerset must have succeeded, because what we have here is the freshly updated Ariel Atom 3.5. As the name suggests, it's a development of the Ariel Atom 3, with a crop of minor visual  tweaks and some mechanical changes too, keeping Caterham and BAC looking over their shoulders.