One special-edition Corvette was introduced in 2007 was based on the Corvette Pace Car that was used at the 91st running of the Indianapolis 500 driven by actor/racer Patrick Dempsey.  The significance of this car was the fact that GM had not produced a pace car replica since the 1998 model year, even though the Corvette had paced the prestigious event a bunch of times since then.
In the late 80s, Chevy was developing what some dubbed a ‘Super Vette.’ But the 1989 debut of the Dodge Viper sent GM engineers on a new path to develop a ‘Viper-Killer.’ It started with a factory test mule and the experiment was to see how a ZR-1 would perform if given more power and less weight. It was so fast it was called "Snake Skinnner", for it's ability to beat the Viper and Cobra.