How about entering Le Mans as your first ever motor race ? That is exactly what Norman Culpan did, in 1949.
He cleverly countered his lack of experience by signing up H.J.Aldington, the managing director of Frazer Nash as his co-driver, a greatly seasoned competitor.
At the half way point in the race, The Frazer Nash had worked its way up to 4th place. All went well until 8am when Culpan found he could get virtually no clutch movement. Due to his greater experience "Aldy" was asked to nurse the car to the finish, some 8 hours away.
This he achieved with panache, finishing in 3rd place, at almost undiminished speed, averaging 78.54 mph.