Both BBC and Sky News are reporting that Maria de Villota, the Marussia F1 test driver, was unable to extract herself from the car after her accident at a test in Duxford at the Imperial War Museum and had to be attended by emergency services. The BBC's Chris Mann reported that they had sent for an Air Ambulance.
Both reports stated that she had just competed an installation circuit/lap when it happened.
Timo Glock tweeted a picture of her in the car this morning: