The same Camaro RS convertible was used again as the pace car for the USRRC (United States Road Racing Championship) races held at the track on Sunday, August 18, 1968. The first picture shows the Camaro in pit lane as the race cars zoom by. This was the last race of the series and it was won by Mark Donohue in his Penske McLaren M6A Chevrolet. Starting 2nd on the grid, this win sealed the Championship for Donohue and Penske.
Photos:
1)
www.timhayes.com2) You can see a bit of the Camaro RS convertible pace car behind the Caldwell D7 of Sam Posey in this picture from autosport.forums.com
3) Program cover (worthpoint.com)
4) Poster (worthpoint.com)