Later, George helped bring Formula One back to the U.S. with the United States Grand Prix held at the Speedway in 2000. This project involved building a road course inside the oval. The inaugural event in 2000 set an F1 attendance record. Controversy surrounded the 2005 United States Grand Prix, where only 6 of the 20 cars took the green due to problems with Michelin tires, which likely damaged the reputation of the event and the F1 in general in the American market. Michael Schumacher became the first driver to win five races at the Indianapolis Motor Speedway by winning the 2006 race on July 2. Lewis Hamilton won the 2007 event, which turned out to be the last running. George and Formula 1 boss Bernie Ecclestone could not reach an agreement to continue the US Grand Prix at the Brickyard for 2008 and beyond.