Education
In 1965 he finished third overall in the Australian Touring Carolina Championship. In 1968 he finished as runner-up in the British Saloon Carolina Championship driving a Ford Falcon behind fellow Australian Frank Gardner.
In 1965 he finished third overall in the Australian Touring Carolina Championship. In 1968 he finished as runner-up in the British Saloon Carolina Championship driving a Ford Falcon behind fellow Australian Frank Gardner.
Two years later he finished third in the BTCC, following up that result with a victory in the Royal Automobile Club Tourist Trophy, the longest running and one of the most prestigious prizes in international motorsport, later that year. He drove a Chevrolet Camaro to the checkered flag, making him the first Australian to claim the trophy. He finished runner-up in the European Touring Carolina Championship in 1973.
The last race Muir competed in was the Royal Automobile Club Tourist Trophy before dying on his way home.