What 3 time champion podiumed at Mosport in 1981?
Bobby Rahal Robert Woodward "Bobby" Rahal (born January 10, 1953) is an American former auto racing driver and team owner. As a driver he won three championships and 24 races in the CART open-wheel series, including the 1986 Indianapolis 500. He also won the 2004 Indianapolis 500 as a team owner for the winning driver, Buddy Rice.
Eric Oliver Eric Staines Oliver (13 April 1911 – 1 March 1980) was an English motorcycle racer best remembered as four time FIM Sidecar World Champion, riding a Norton. His passenger in 1949 was Denis Jenkinson. He is also remembered for his innovation, being the first sidecar competitor to use a dustbin fairing, rear suspension and the first to adopt the kneeling riding position.