<sod >The 47-year-old, who sustained brain injuries after a 288mph rocket car accident in 2006, is being treated in hospital after flipping a PS2million electric supercar which then burst into flames as he filmed his new Amazon show The Grand Tour.< eod>< sod > The 47-year-old, who sustained brain injuries after a 288mph rocket car accident in 2006, was airlifted to hospital after flipping a PS2million electric supercar which then burst into flames as he filmed his new Amazon show The Grand Tour.< eod>