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Buick Regal (2011) Revealed

General Motors has revealed the 2011 Vauxhall Insignia based Buick Regal Now that the American car industry is starting to release mainstream cars that make sense, it does make sense for us to report on them. And in the case of the 2011 Buick Regal there is another very good reason. This is a Vauxhall Insignia with a bit of Yankee glitz.

Porsche Panamera convertible plans uncovered

A series of European and U.S. patent applications obtained by AutoWeek show that Porsche remains committed to building a four-door convertible version of its flagship Panamera, despite recent comments from Zuffenhausen insiders indicating the car had been canceled. The new car, depicted in official drawings that accompany the latest Porsche patent applications filed in February, eschews the two-door route taken by all of its upmarket rivals for a practical four-door body.

Video: Porsche GT2 RS attacks GingerMan Raceway

You saw our walk-around and overview of the 2011 Porsche GT2 RS earlier this week. As promised, here's the VBox footage of Autoweek editors blasting around GingerMan Raceway in southwest Michigan doing what the Porsche does best. So far we've brought you track-day action featuring the Chevrolet Corvette Z06 and the Porsche GT2 RS--what's missing?