The common misconception that racing drivers don't need to be fit because they work sitting down is far from the truth – F1 drivers are constantly pushing their bodies against G-forces from all directions for 60 laps.
In less than a week Button managed to complete a 42km cycle ride, a 500m river swim and a 10km circuit run of the Windsor triathlon, proving that he doesn't need to be in a car to drive to victory.