Just months later Caldwell was in the race team, helping to engineer McLaren’s M5A at the ’67 Italian GP. Fifty-five years later, his fellow Kiwi recalls the humour which kept the team a happy ship.
“Before Monza in ’67 we were working late on the V12 BRM-engined car and Bruce turned up, went out and got us some oil to fill the tank,” says Caldwell.
“He kept on pouring it in until we realised there was no bung in the tank. Bruce retreated with his smart shoes covered in oil. All good fun. He was a very cheerful, positive person and that always goes down well with everyone.”
McLaren was an increasingly competitive prospect over time, and by 1968 the team had in the M7A a serious challenger.
It all built up to a moment which Caldwell still says is his best in motor sport.
“It was the only grand prix he ever won in his own car, McLaren in a McLaren, and the first one the team ever won,” says Caldwell with relish.