A FORMULA 1 RACER IS IN THE MIDDLE OF A RACE, dozens of laps to go. Everyone’s zooming over 300kph. But it’s time for repairs and tyre changes — time for a pit stop. The racer pulls in. Close to two dozen workers swarm on the vehicle. The car rises on jacks, all four tyres are changed, the driver's helmet visor is cleaned, the jacks drop and the car bolts away.