Book excerpt: Meet Marc 'Elvis' Priestley: the former number-one McLaren mechanic, and the brains behind some of Formula One's greatest ever drivers. Revealing the most outrageous secrets and fiercest rivalries, The Mechanic follows Priestley as he travels the world working in the high-octane atmosphere of the F1 pit lane. While the spotlight is most often on the superstar drivers, the mechanics are the guys who make every World Champion, and any mistakes can have critical consequences. However, these highly skilled engineers don't just fine-tune machinery and crunch data through high-spec computers. These boys can seriously let their hair down. Whether it's partying on luxury yachts or gravity-defying photos aboard aeroplanes, this is a world which thrills on and off the track. This is Formula One, but not like you've seen it before.