His best result was in 1965 when he rode a Matchless to a third-place finish in the 500cc world championship behind Mike Hailwood and Giacomo Agostini.

From 1971 he entered his own McLaren under the guise of Team Personality, finishing third in the series final classification.

[2] In 1974 he was hired by Team Gunston, racing a Formula One Lotus 72, and repeating his third place.

Driver is one of a small group of people who have raced in both the Grand Prix motorcycle World Championship and Formula One.

The group also includes John Surtees, Mike Hailwood and Johnny Cecotto.