The Chevrolet Corvette is one of the best performance cars on the market today, and it's also a real value. We realize value may not be the first word that springs to mind when looking at a $50,000 sticker. But this fifth-generation Corvette, called the C5, delivers a combination of acceleration and handling performance matched only by the Dodge Viper, Porsche 911 Carrera and various exotics, all of which are far more expensive. There's really nothing quite like the Corvette. Sports cars in the C5 price range, such as the