After a failed attempt to qualify for the 1950 Indianapolis 500, Lynch continued racing in sprint and midget cars throughout the country, eventually bringing him to California. He participated in the 1951 Mexican Road Race which was chronicled in the movie La Carrera Panamericana. He also participating in the newly formed National Association for Stock Car Auto Racing (now known as NASCAR). Lynch officially retired from auto racing in 1957 after becoming "too careful" during a sprint car race.