Mezue ahịrịokwu na-esonụ: N'afọ 1967, Leonard ga-amalite oge maka Sheraton-Thompson Racing na # 82 Sheraton-Thompson Racing Lotus-Ford ma nweta ebe nke 4 na-emepe oge Jimmy Bryan Memorial na Phoenix International Raceway. Malite na
Indianapolis 500 Leonard ga-akwọ ụgbọala #4 Sheraton-Thompson Racing Coyote-Ford N'ọsọ ahụ, ọ ga-aga nke ise ma mechaa nke atọ. Leonard ga-enwerịrị ụgbọ ala ya gbanwere ọzọ maka agbụrụ abụọ ahụ mejupụtara Telegraph Trophy 200 na Mosport Park ebe ọ na-anya ụgbọ ala # 4 Sheraton-Thompson Racing Eagle-Ford.