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Rennsport Reunion IV closes with Porsche 917s tearing around the track

Rennsport IV, three days of serious Porsche love at Mazda Racway Laguna Seca, concluded on Sunday with a half-dozen races around the picturesque track near Monterey, Calif. And while there were a variety of all things Porsche to see and hear through the three days, Sunday saw some of Porsche's most powerful race cars take to the track. It was certainly a case of saving the best for last.

Breaking: 2015 Corvette Z06 drops its top for New York auto show

This is the new 2015 Corvette Z06 convertible, the Stingray for owners who want it all, shown a little earlier than we expected. Buyers get the Z06 engine, racing suspension and brakes, and now, for the first time since 1963, they can get that package with a convertible top, as we'll see at the New York auto show. “Until recently it was not possible to create a lightweight, open-roof structure strong enough to cope with the braking, cornering and acceleration of Corvette's top performance models,” said Corvette chief engineer Tadge Juechter.

Latest Alfa Romeo delay spooks Fiat dealers

Another delay in Alfa Romeo's scheduled return to the United States has surprised and disappointed Fiat dealers counting on the sporty Italian cars to bolster their new franchise. Alfa Romeo CEO Harald Wester said last week that three of the brand's U.S.-bound models will be delayed and a fourth will be canceled. Fiat's 130 U.S.