'The Smiling Dane,' as he was known to the racing fraternity, was a top mechanic who won his debut race in a Volvo and the Scandinavian Touring Car title in 1969, in a Ford Escort.
His prize was some backing towards a Formula Ford season so Belso upped sticks to England to race a Hawke. He switched to the new FAtlantic category with a Brabham-BDA BT28/35 in '71, finishing third in the championship with wins at Snetterton, Castle Combe and Mallory Park.
The jump to F2 with a Team Viking Brabham BT38 in '72 netted fourth place at Albi.
Formula 5000 proved to be Belso's metier and he piloted one of Jackie Epstein's ShellSport/Radio Luxembourg Lola T330s in the Rothmans European championships of '73 and '74, winning Snetterton's round in the latter.
He qualified for two of the five F1 GPs for which he was entered in Frank Williams' 'bit part' Iso-Marlboros, finishing eighth in the '74 Swedish GP.
Belso raced British breakfast cereal magnate John Jordan's Lola T332 as late as '77 and, identifying a business opportunity, founded a similar company the same year.
Having established the Danish market for cereals and baked products, Belso sold out in 2005, but remained in England. He last raced in 2001, back in a Volvo 122S at the Goodwood Revival Meeting.
Belso was married to Barbara, with whom he had a daughter, and had two sons with his first wife.
To his family and many friends in racing Motorsport.com offers sincere condolences.
Tom Belso, ISO Marlboro Williams