Zak Brown wanted to be a racing driver. The problem was, he had no money.

As a teenager, he appeared on the TV gameshow Wheel of Fortune then sold the watches he won to fund enrolment at a karting school. A few years later he left his home in California and flew to the UK, to pursue the dream of so many young drivers.

His first job in motorsport was washing cars at a Donington Park racing school while lodging on an air mattress at a mate's house in Sheffield - a life Brown now describes as "torture."