His Formula 1 career produced an unprecedented level of success – but also a tremendous amount of pain.
By the time Sir Jackie Stewart ended his racing career in 1973 he had won more races than anybody else had ever managed. A record of 27 wins and 43 podiums from 99 starts helped the petrolhead from Dunbartonshire to three world championships before he quit the sport.
Why retire then? Put simply, the risk of carrying on was too great. Motorsport remains a dangerous pastime today even despite the abundance of safety measures in place – back in Stewart's day, every driver really was risking their life whenever they clambered into their cars.
