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Renault Twin-Z concept (2013) first official pictures

This is the Renault Twin-Z concept (say it 'Twin-Zee'). Although it packs the usual concept car madness of suicide doors, a pared-back cabin and LEDs everywhere, it actually previews the look – and drivetrain – of the next Renault Twingo. The big news is that it'll be rear-engined, rear-drive, and offer an electric option for less money than the £13k Renault Zoe EV.

Peugeot Onyx concept [w/Gallery]

Peugeot has previewed its Onyx concept, set to debut at this month's Paris motor show, just days after the first teaser images were released. Very much a supercar in terms of its proportions and form, the Onyx is not the first time Peugeot's previewed super and super-sports cars in concept form, but the Onyx looks a lot more promising than previous efforts, from these photos at least. Conforming to the modern, eco-conscious supercar norm, the Onyx features a hybrid drivetrain - following in the footsteps of the BMW i8, Honda NSX and Jaguar CX-75.  Peugeot's stated aim is to push itself upmarket and become a more premium brand, so the Onyx could be read as a sign that the company feels it needs more of a 'halo' car in order to achieve that aim.

2014 Corvette Stingray rated at 455 hp

The 2014 Chevrolet Corvette Stingray's 6.2-liter LT1 V8 engine has been rated at 455 hp at 6,000 rpm and 460 lb-ft of torque at 4,000 rpm -- the highest standard-power rating ever for the Corvette. An available performance-exhaust system boosts the rating up to 460 hp and 465 lb-ft of torque. Chevrolet says the new LT1 with standard exhaust has 25 more horsepower than the current Corvette's base LS3 6.2-liter engine, which is rated at 430 hp, and 41 lb-ft more torque compared with the 2013 model's 424 lb-ft.