The Mexican Grand Prix would be the last Formula One race for a works Cooper car, as the Cooper team decided it could not continue to compete in Formula One with no sponsorship money available for 1969 and auctioned off the two T86B chassis still in its possession.[3] The first T86B was acquired by Martin Brain who drove the car with some success in British hillclimb and club races, but in a Formula Libre race at Silverstone in 1970 Brain left the track and flipped the car, and was killed.