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AC Mk VI: AC Cars return to the UK

Here's a blast from the past. AC has announced it's returning to the UK market and will exhibit the Mk VI version of its venerable roadster at the 2011 Geneva motor show. AC, a UK manufacturer that's 110-years-young in 2011 but with more regenerations than a Doctor Who convention, is establishing a new base at Brooklands.

BMW's Vision EfficientDynamics concept bound for Frankfurt

BMW has revealed a radical vision for its future performance-oriented models in a spectacularly styled concept car whose combination of M3-rivaling acceleration and Mini Cooper-beating fuel economy will likely make it one of the stars of this year's Frankfurt motor show. Called Vision EfficientDynamics, the one-off coupe is a mobile showcase for lightweight construction and plug-in hybrid drive technology, while featuring a variety of futuristic styling, packaging, aerodynamic, lighting and interior ideas under development at the German carmaker's heavily cloaked FIZ development center in Munich. Many of the concepts are planned for use on upcoming BMW road cars, including an exciting Z10 EfficientDynamics range-topping model due by 2015.

Name the new Viper color, win a trip to Daytona

Chrysler and SRT are giving fans a chance to name a new color for the Viper sports car. Beginning today, enthusiasts can go to driveSRT.com/colorcontest to check out the rules and enter. The grand-prize winner gets a trip to Daytona Beach, Fla., for the 2014 Rolex 24 Hours of Daytona and the opportunity to spend time with the Viper Design team over the weekend.