Henton (nicknamed "Superhen" in the British racing press) came from a modest council house background and did not start racing until he was 23. On winning the minor British Formula Vee championship in 1971, ever-conscious of the value of public relations, he announced that he was going to be World Champion. This aim eluded him, but he enjoyed a successful career in Formula Three and Formula Two.
Henton's F1 debut came in 1975 for Lotus, theoretically a good drive but the team was in turmoil with the Lotus 72 finally uncompetitive and its replacement the Lotus 76 a failure, so nothing concrete was achieved. Between 1975 and 1978 he mixed Formula One and Formula Two drives (including a spell in a private March for his own British Formula One Racing Team), never quite establishing himself in either category, but clinched the 1980 F2 championship for Toleman, who took him into F1 for 1981. The first Toleman-Hart was something of a disaster, overweight and underdeveloped, and Henton only managed to qualify once. Unfruitful outings for Arrows and Tyrrell in 1982 led to no more success, though he did set the fastest lap at the British Grand Prix - Henton is the only driver in Formula One history to have set a fastest lap without ever scoring a championship point.
Perhaps fittingly, his last Formula One outing was at the Race of Champions at Brands Hatch in April 1983, which also turned out to be the last non-championship F1 race in the modern era.[1]
Following his retirement from the sport, he returned to running a car dealership and later moved into property development and in recent years has diversified into other areas, notably engineering. He has occasionally driven at historic events and holds equestrian events at his home in Ingarsby Hall, Leicestershire.[2]