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Overfinch Range Rover Sport GTS-X gets 575bhp

Overfinch has revealed its most powerful Range Rover yet – the Range Rover Sport GTS-X – with 575bhp and 0-60mph in 5.0 seconds. Now Overfinch is back on track new models are starting to take shape. And the Overfinch Range Rover GTS-X, revealed today after a brief debut at the Goodwood Festival of Speed last month, is one of the most appealing Overfinch has ever churned out.

Video: The Porsche Panamera Sport Turismo concept build process

Porsche has released a video featuring Style Director Michael Mauer charting the design process of the Panamera Sport Turismo concept. The 10-minute YouTube video, which also features General Manager Advanced Design Style Mitja Rorkert, follows the build process through each modeling phase right up until the presentation of the show car at this year's Paris motor show. "It always presents a special challenge when we develop a new kind of car for the Porsche brand," says Mauer, "precisely because we haven't been in the segment before, and the question of whether it matches the Porsche brand always looms in the background." We were impressed at the Panamera Sport Turismo concept's unveiling, particularly with its stance and detail execution, so the video is a chance to see just how this concept came into being.

Fiat dual-clutch transmissions are planned for North American products

During the next five years, Chrysler Group's powertrain lineup will be transformed from one dominated by larger-displacement engines to one dominated by Fiat-derived four-cylinder engines, V6s and, eventually, electric vehicles. Chrysler also said Wednesday that it will add Fiat-designed dual-clutch transmissions in its North American products. The company also will launch its new Pentastar V6 engine on the 2011 Jeep Grand Cherokee in the second quarter next year, said Paolo Ferrero, Chrysler's powertrain chief.