Ahead of the Las Vegas Grand Prix, F1 TV presenter James Hinchcliffe explains why Formula 1 has become such a huge success in the United States. There are now three races in the states, with the third taking place at one of the most iconic locations in the world, Las Vegas, next week. It hadn't always been easy for F1 to crack into the American market, and the Canadian reveals exactly how Liberty Media nailed their expansion attempt in his latest column.