A white 1968 Camaro RS/SS convertible was used on the parade lap prior to the start of the Old Dominion 500 NASCAR Grand National race held at Martinsville Speedway in Martinsville, Virginia on Sunday, September 22, 1968. For some reason the Camaro was not used as the pace car. The white Chevy station wagon behind the Camaro was used as the pace car for this event instead. Notice the yellow flags on the back of the station wagon and not the Camaro in this picture. This color picture appeared on the front cover of the program for the same event held the following year in 1969. I found it at worthpoint.com
The same photo was used on a brochure for the 1969 season. It also came from worthpoint.com