 Sampson was a mainstay of the Australian Motor Industries-Toyota Team at the Bathurst 500 from 1965 to 1970, winning Class A in 1969 in a Corolla.Well noted as a collector and racer of Cheetah racing cars, he is best remembered as Peter Brock's co-driver to win the 1975 Bathurst 1000.He also won the 1977 Rothmans 500 co-driving with Warren Cullen.