It may seem like the first Chevy Indy pace car was the 1967 Camaro, because that’s the one you seem to hear about the most. But actually, bowties took the helm twice before that. Way back in 1948, a Chevy Stylemaster convertible was used as the Indy pace car. This stately Stovebolt was appropriately decorated with colorful pace car graphics that encased the entire side of the car. Then in 1955, the first year of the popular small-block Chevy V8, a red and white Bel Air convertible led the field.
The slideshow below features a General Motors publicity photo of every Chevrolet ever to pace the Indy 500, starting with 1948. I think they're pretty interesting pictures, and if you click on the little balloon in the bottom left corner, it'll tell you who actually drove the pace car that year, and also who won the race. Take a look!
General Motors photos from every year of Chevrolet pace cars: