The voice of motor racing – and the man responsible for introducing millions of viewers to the previously inaccessible world of Formula 1 – tells the story of his incident-packed life.

Murray Walker is an institution. When the man who made famous the catchphrase 'Unless I'm very much mistaken… I AM very much mistaken!!!' announced that he was retiring as ITV's Grand Prix commentator at the end of the 2001 season, the media reacted as if the sport itself was losing one of its biggest stars.