Jenson Button is looking forward to the first F1 grand prix in the United States since 2007 . Former world champion told CNN the event is important for F1 's future development . He says he has good relationship with departing teammate Lewis Hamilton . but it was on a circuit which was n't built for Formula One cars , but for IndyCar and NASCAR . Hamilton met his fellow driver on tour earlier this year .
Jenson Button is looking forward to the first F1 grand prix in the United States since 2007 . Former world champion told CNN the event is important for F1 's future development . He says he has good relationship with departing teammate Lewis Hamilton . Hamilton met his fellow driver on tour earlier this year .