Cheever, coping with sagging oil pressure, fading brakes and a cracked exhaust, led for much of the way but was overhauled on a drying track by the lighter Project Four March of Derek Daly.
Victory came his way, however, when the unlucky Irishman suffered gear-linkage problems on the last lap.
“I had lot of head-to-heads with Daly that year,” says Cheever. “Formula 2 was very aggressive. And whenever it rained we had to make sure that we got as many points as possible…”
Charging from 12th on the grid, he took the lead of June’s Pau GP on lap 31 (of 73) when he nudged, “by mistake”, Daly from contention: “I would say that he came down on me. But no doubt we would argue about it to this day.”
A third win was obtained in the July dry at sandy Zandvoort.
“Managing rear tyres was our biggest problem and something I wasn’t always the best at,” Cheever adds. “We had different compounds on the inner and outer shoulders and the long straightaway there gave them sufficient respite that they made it to the end.”
Sadly this unexpected title challenge would fall at the last.
Jointly second in the points with former BMW Junior charger Marc Surer – and one point behind Brian Henton, whose Enna victory was under appeal – Cheever could do no better than seventh at Donington Park and slipped to fourth in the standings.
“It had been a big year,” he says. “It launched Osella and relaunched me. But that wasn’t the end of it. Osella then had the balls to go race in F1.
“And I put all my chips in with them.
“The first three GPs of 1980 were nightmares. The car was 200lb overweight and its skirts kept sticking up, over kerbs. It was a very difficult transition to go from winning races to starting from the back of the grid.
“But by the end of the season I was qualifying mid-grid. That got me my ride with Ken Tyrrell for 1981.
“I would have to give Mr Osella 110 per cent for finding a way to keep everything together from sporting and business perspectives; to find the sponsorship and build an F1 car – and survive in F1 for 10 years.
“A real Cinderella story.”
Starring Mr Eddie Cheever as Prince Charming.