A female F1 test driver, believed to be Maria de Villota, was hurt while driving a car for the Oxfordshire-based Marussia team at the Imperial War Museum, in Duxford.
The car hit a lorry which had been used to take it to the track.BBC Cambridgeshire presenter Chris Mann, who witnessed the crash, said the car had completed a circuit when it "suddenly accelerated" into the back of the lorry."From where I was standing it looked like the helmet took the brunt of the impact," he said.