The 1990 Escort World Challenge Series Corvette R9G’s were only available for one week. Only race teams were allowed to order this very rare Corvette through dealerships.
The 1990 Corvette had its own code like the ’88 & 89’s did, it was dubbed the “R9G” Corvette. The documentation from GM clearly indicates that the cars were produced for the express purpose of racing in the SCCA World Challenge Series. There is also documentation that identifies by serial number, all Corvettes produced with these option codes. Therefore, it is relatively easy to validate the authenticity of any R9G Corvette.
Each of the twenty three 1990 R9G Corvettes were designated strictly for racing. Although collectors ended up getting their hands on this very rare commodity and stowing them away in their garages for safe keeping. There were also some race teams that took the car to the next level, such as Tommy Morrison, Kim Baker and etc.
During 1990, Chevrolet dealers could order Corvettes destined for the new World Challenge race series. Merchandising code R9G offered such items as heavy-duty springs with FX3 adjustable suspension as part of the package. Engines were base 5.7 liter models with no special preparations like the 1988 and 1989 Challenge engines. Owners were also responsible for all race modifications.