Adrian Newey has been taken to hospital for precautionary checks following a crash at Snetterton
The Red Bull technical director was competing in a Ginetta G50 race supporting the British Touring Car Championship at the Norfolk circuit.
The race was red-flagged after his crash in which two other cars made contact with his G50. He was removed from the car on a stretcher.
Newey, designer of the championship-leading RB6 which has won six races this year, was appearing in the race as a guest driver.
He was also involved in a crash while racing in the Le Mans classic in 2006. Earlier this year Red Bull presented him with a 2009 RB5 to thank him for his work for the team.
Read more: Newey given RB5 at Goodwood