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New Porsche Cayenne Turbo S (2013) arrives

Porsche has revealed the 2013 Cayenne Turbo S, the range topping Cayenne with an extra 50bhp and a £107.5k price tag. The 2013 Porsche Cayenne Turbo S has been revealed with a few subtle cosmetic changes and an extra 50bhp and 37lb/ft of torque to add to the Cayenne Turbo’s 500bhp and 516lb/ft. Porsche has released the extra 50 horses in the Turbo S by making the inlet manifold more-free flowing, turning up the boost a bit and plugging in their laptops to have a fiddle, the result of which is a 0-62mph of 4.5 seconds and a top speed 3mph more.

Infiniti Q50 hit by steer-by-wire recall in the US

Infiniti has issued a recall notice in the US for a small number of Q50 models fitted with the firm’s new Direct Adaptive Steering system. This is a ‘steer-by-wire’ steering system that only has a mechanical link between the steering wheel and the wheels as a back-up. The rest of the time the steering is operated by electronics, rather than a direct connection.

Electroluminescent Lumilor coating transforms any surface into a lamp

Thanks to advances in LED and lasers, an emphasis on lamp design is a rapidly growing trend. But what if any or all of a car's surfaces, inside or out, could become lamps at the flick of a switch? That question has been partially answered by Darkside Scientific.