 Stuntman Bob Simmons (I) (qv) appeared to have made a very narrow  escape from the car explosion stunt during filming at Silverstone  Racetrack, Northamptonshire, England. Director Terence Young (qv)  raced to the scene whereupon Simmons surprised him from the side  road as a gag. People watching the stunt generally didnt see  Simmons exit the vehicle before the explosion, probably due to his  exit