GTR Composite Engineering | Making a difference


GTR is solely owned by John Biddlecombe and Simon Kingdon-Butcher. Prior to GTR, John and Simon owned G Force, also located on the Fontwell site.

G Force originally designed and built racing cars for various motorsport series including IndyCar, Formula Nippon, and Le Mans Prototype sports cars, with many successes such as four wins at the Indy 500, and the building of the current land speed record holder: Thrust SSC.