This Tom Bing photo, from yesterday's DTRA Thunderbike race at Peterborough, features three, count them, three Survivor Rotax racers.
James O'Hara slid out of the final, went into the airfence, and was soon followed by James 'Leftie' Smith and Ross 'The King' Herrod. They all walked away and, I think, even restarted the same race. Tough cookies.
Read about Survivor Customs Rotax (many of which are piled up here, coincidentally) in SB34.