This is a Limited Edition 1/18th scale Silver Crown Champ Car, #99 of 750 models by GMP. Racer waz driven by Duane "Pancho" Carter and sponsored by Dobbins Chevrolet Dealership in Indiana, I believe. I haven't as yet found any pics of this car online yet, but I'm figuring by tha tires configuration and tha Offy engine that this must be an early '70s racer.