Gerry Marshall - literally a larger than life character. I remember his exit from the pits at Snetterton for practice in a Bill Blydenstein Vauxhall Viva - sideways down the pit lane - the marshalls just cheered.
He was also renowned for challenging people to sprint races in the car park otuside the bar after races for beer money. You can see the size of him in the video - but he was an astonishingly fast runner over a short distance...
He died doing what he loved best - driving a classic race car. He was found dead at the wheel parked up near the catch fencing at (I think) Goodwood.