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What's different about electric cars this time? A column by Kevin A. Wilson

Thirteen years after the General Motors EV1 was rolled out to cheers from advocates of a revolution in the way we power automobiles, those same advocates are out front cheerleading yet another revival of an idea as old as the automobile itself: Run 'em on batteries. Batteries aren't a source of energy. They're just storage units, a convenient means of making power portable.

GM returns to Super Bowl, new ads upcoming for Camaro, Caddy

If there's one thing Joel Ewanick has made clear since joining General Motors Co. three months ago, it's that he doesn't let grass grow under his feet. And the company's vice president of marketing isn't slowing down anytime soon: In a wide-ranging interview with Advertising Age, an affiliate of AutoWeek, Ewanick let drop that the automaker will return to the Super Bowl in 2011; that an ad campaign will break next month for the Chevy Camaro; and that there's a new tagline coming for Cadillac, "The new standard for the world." "We have so many projects in the works right now," he said.

Hennessey tunes C7 Corvette Stingray

Hennessey Performance and its gang of Texas tuners are planning upgrades for the 2014 Chevrolet Stingray Corvette before the car even hits the market. We're sure Corvette engineers working on the next ZR1 are taking notice, presumably with a chip on their collective shoulders. In October, the Hennessey HPE700 Corvette is expected to debut packing a claimed 700 hp, with help from an Eaton TVS R2300 supercharger.