Youre pulling 4-5G for a lot of the corners around the lap. We build up lactic acid because there are a lot of vibrations in the car, and you have to have strong legs to hit the brake pedal. We need to be fit to do every lap at 100%. – Jenson Button

I keep my weight low, although you need to be able to move your weight around the race car to change the balance. Im 6ft and Im 70kg so I havent much fat on me. – Jenson Button

I dont purposely speed, but I might go over by five or six miles an hour from time to time. It doesnt give me a buzz driving on normal roads, because I cant go fast enough. Its never going to be anything like an F1 car. – Jenson Button