Power brokers in Detroit: Performance and sports cars

Amid all the hype around fuel economy and being better to the environment, automakers are cranking out new high-powered performance cars at a brisk pace. From the long-awaited new Chevrolet Corvette, to the six-figure ultra luxury Bentley Continental GT Convertible, to the Jeep Grand Cherokee SRT sport utility, the sheer variety of speed machines is as impressive as their breakneck acceleration and triple-digit top speeds. Here is a round-up of 10 all-new performance and sports cars that will go on sale this year.