A light colored 1967 Camaro RS/SS convertible was used to pace A.R.R.C. (American Road Race of Champions) races held at Daytona International Speedway, Daytona Beach, Florida November 22-26, 1967. This event was the predecessor of today's SCCA (Sports Car Club of America) National Runnoffs. In a different thread, Jon Mello stated that, "these races determined the national champions for each SCCA racing class as they brought together the best drivers from each region of the country to face off in a winner-takes-all race. John McComb and his Mustang were the A/Sedan national champs in 1967."
The first picture is a cropped version of the picture that appears in the February 1968 edition of SCCA Sports Car Magazine spread (Ebay pictures)
I'm not sure where I obtained the 3rd picture.