An overnight change has seen Mazda Motorsports alter its direction on the plan to split powertrain setups for this weekend's Sahlen's Six Hours of the Glen.The factory TUDOR United SportsCar Championship Prototype team spent most of June testing a 2.0-liter gasoline-powered 4-cylinder turbo engine as an eventual replacement for its...

Strange things have been going on at GM these past couple years. As Buick’s sedans have headed upmarket and Chevrolets have gone from anonymity to discreet handsomeness, Cadillacs have become an acquired taste in the looks department. Of course, aesthetics are purely personal and we should all be grateful to...