Although the first Brabham BT20, the definitive 1966 car, had been available at Reims, Brabham continued with the BT19 and used it to win the next three championship races. Ferrari, competitive in all three championship races to that point, were not present for the British Grand Prix. The race was held on the tight and twisting Brands Hatch circuit, the track made slippery by oil leaking from other cars and by drizzle.