He was renowned as an opinionated character who "was about as good as there ever was on engines", according to Marvin Panch, who drove stock cars for Yunick and won the 1961 Daytona 500. His trademark white uniform and battered cowboy hat, together with a cigar or corncob pipe, were a familiar sight in the pits of almost every NASCAR or Indianapolis 500 race for over twenty years. During the 1980s, he wrote a technical column, "Track Tech", for "Circle Track" magazine and wrote an occasional "Say, Smokey..." guest column for "Popular Science" magazine. In 1990, he was inducted into the International Motorsports Hall of Fame.