Green was the first man to break the sound barrier in a car in 1997, when he hit 763.035 in the Thrust SSC. This time, he only reached 210 mph, but he got there in just eight seconds.

The design has been finalised for the Bloodhound SSC, set to smash the world land-speed record as the first car to hit 1,000mph. Not so handy on the school run though ...