There's several great stories related to the filming of "Grand Prix" involving Garner. He did do much of his own driving, while some of the other actors were so terrified, their camera shots were mostly in towed cars. Steve McQueen, who had also been planning a Formula One movie, was so literally "pi$$ed" that when the two lived in the same apartment building, McQueen used to take a leak onto Garner's patio every night from his upstairs unit.