Marussia Formula 1 test driver Maria de Villota has been removed from the critical list following her crash on Tuesday.
The 32-year-old lost her right eye after she was involved in the accident at Duxford Airfield.
The Spaniard is now "serious but stable" at Addenbrooke's Hospital in Cambridge following further surgery.
De Villota, the daughter of former F1 driver Emilio de Villota, has raced in a number of different series since 2001.