The 33 was also campaigned in 1965 by DW Racing Enterprises for Paul Hawkins, and in 1965 and 1966 by Reg Parnell Racing, however their car was actually a crashed 25 rebuilt as a 33, with a BRM engine. The 33's final World Championship race was the 1967 Canadian Grand Prix, where privateer Mike Fisher finished in 11th place. Fisher also qualified the car for that year's Mexican Grand Prix, but engine problems prevented him from starting the race.