For the first five years of his NASCAR career Cecil "Flash" Gordon was a stalwart FoMoCo racer but for 1973 he made the big switch to General Motors.
Mark Donohue drove an AMC Matador featured a set of disc brakes – new for NASCAR racing at the time – and led 138 laps en route to the win.
[1] Bobby Allison finished second driving a self-fielded Chevrolet following a surprise divorce from the Richard Howard team.
[1] Cale Yarborough, new driver for Howard's team with the cars renumbered to #11, fell out with transmission failure.
[1] Unfortunately after losing an engine in their Daytona qualifier the following month, the team apparently packed it in due to lack of funding.