Your mention of the Richard Petty mower eggman67 reminded me of a similar campaign starring Allan Moffat, which Victa used to promote its lawnmower range. Moffat's involvement was part of his BP sponsorship, because Victa recommended 'BP Zoom' pre-mixed fuel for its two-strokes. One of their models was also called 'Mustang' which dovetailed nicely with Moffat's famous Trans-Am he was racing at the time. It was a very successful campaign for all parties.