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Mazda brings diesel back to Indy with 6 Skyactiv-D

Diesel has enjoyed great success lately as a racing fuel, but there's one place it hasn't appeared for more than six decades: Indianapolis Motor Speedway. Mazda's breaking that dry spell this weekend, when its Mazda 6 Skyactiv-D race car will head to Indy for the Grand-Am race. We like the 6 in both road trim and racing livery, but that previous diesel-powered racer -- the Cummins Diesel Special -- is pretty neat too.

AW Design Forum: Ralph Gilles talks technology - with style

Chrysler Group is known for its rough and tough trucks and menacing muscle cars, but its design boss said technology is going to be the game-changer for car designers going forward. Ralph Gilles, who is also CEO of the Dodge brand, said cars must be able to adapt to evolving technologies while remaining striking and pleasing to the eye. Smartphones, touch screens and colorful interfaces are all becoming common inside cars.

Pruett marks Indy 500's anniversary with a limited-edition wine

Race-car driver Scott Pruett is also a winemaker, and his vineyard is releasing a limited-edition Napa Cabernet to celebrate the 100th anniversary of the Indianapolis 500. Pruett and his wife, Judy, opened their vineyard in 2006 in Auburn, Calif., on the eastern slope of the northern Sierra Mountains. They create small-lot, hand-crafted premium wines.