It's the 1974 Dutch Grand Prix, and there's an odd sight at Zandvoort: Emerson Fittipaldi has a divining rod in his hands, given to him by Clive Hulme - a renowned mystic, Victoria Cross recipient and father to Emerson's McLaren team-mate Denny. As it twitches and turns to point towards him, Emmo laughs out loud, and Clive declares: "You're going to be world champion!"
With Fittipaldi beaten into third place that day in June by a Ferrari 1-2, it looked like Hulme Sr's prediction was wide of the mark. But Fittipaldi knew what he needed - Goodyear's stiffer and wider tyres were holding his McLaren M23 back - and designer Gordon Coppuck knew how to fix it.
"On the bumpy tracks we didn't have a good suspension geometry for the rear," says Fittipaldi. "Then Gordon designed a new suspension for Brands Hatch. And that's when the car started working really well everywhere.