 Zborowski designed and built four of his own racing cars in the stables at Higham Park, assisted by his engineer and co-driver Captain Clive Gallop, who was later racing engineer to the "Bentley Boys".The first car was powered by a 23,093 cc six-cylinder Maybach aero engine and called "Chitty Bang Bang".A second "Chitty Bang Bang" was powered by 18,825 cc Benz aero engine.