I thought all three years of the first generation Camaros were Indy 500 pace cars, but I can only find the 67 and the 69 in the history. In 1968 it says they had a Ford Torino. That can't be right!

All the pace cars: http://www.indymotorspeedway.com/v1/500pace.htm

 

Yeah, they rotate them around. I think the car companies bid contracts every year. GM has pretty much had the pace cars locked up to themselves the past decade.