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Three Lexus special editions arriving before the new year

Lexus has rolled out three special-edition models. They aren't F-branded as we hoped, but they do come with some sporty touches. The Lexus LS 460 Sport Special Edition gets upgrades from the wheels to the sunroof and a unique obsidian paint job.

General Motors to offer car sharing via mobile app and OnStar

General Motors has partnered with a San Francisco-based start-up company named RelayRides to enter the car-sharing business. In early 2012, GM vehicle owners in California will be able to use the OnStar system to rent out their cars when they aren't using them. The service will available nationwide for OnStar subscribers by the end of the year.

First Sight: Mercedes-AMG GT

“If I was to buy any sports car that wasn't a Mercedes, it'd be a Porsche 911,” says Mercedes' head of design, Gorden Wagener. “But when you see the two cars together, we think ours has the edge.” He's talking about the new Mercedes-AMG GT, a front-mid engined, two-seater sports car that's unashamedly aimed at higher-end 911s, and we've come to see it at Mercedes' Sindelfingen studio.  The GT replaces the larger SLS, and is seen by Wagener as the best example yet of his 'sensual purity' design philosophy: “The SLS is very much [he gestures] line, line with a surface in between. With the GT we started with the surface and worked to refine and reduce the number of lines.” Elements of the SLS's platform have been carried over, so the GT measures the same 1,939mm wide.