In the race Spence completed nine laps before a halfshaft broke, while Irwin was running fourth when and engine problem put him out, although he was still classified in fifth place. At Silverstone both of the works P83s suffered suspension failures in practice, and as a result Stewart took over the Reg Parnell P83 of Irwin, who in turn was given the P261 of Piers Courage, who had to sit out the race. For once Spence out-qualified Stewart with the two cars in 11th and 12th place but at the end of the second lap Spence's electrics caught fire and he lost ten minutes while the car was repaired. Stewart broke down after 20 laps with transmission problems and after 44 laps Spence retired from 13th with further electrical problems. BRM built a new lightweight P115 chassis which arrived for the German Grand Prix, and Stewart would use this car for the rest of the season leaving Spence and Irwin in the heavier P83s. While Stewart put the new car on the front row Spence and Irwin were well back in eleventh and fifteenth out of the seventeen F1 runners, Spence becoming the first retirement after three out of fifteen laps with the same differential problems that would claim Stewart later in the race. Meanwhile, Irwin took advantage of the many retirements and finished the race two laps down in seventh place. The three H16 BRMs of Stewart, Spence and Irwin were together on the grid in ninth, tenth and eleventh place for the Canadian Grand Prix, and at the start all three cars gained places, the weight of the engine perhaps providing added traction in the wet conditions. Irwin climbed as high as seventh before falling back and ultimately spinning off after 18 laps. Spence again got the car to the finish and after running in eighth for much of the race a spate of late problems for others lifted him to fifth place, three laps down but two places ahead of Bruce McLaren, who had impressed running second in a car powered by the BRM V12 that would replace the H16 for 1968. At Monza Spence and Irwin sandwiched three of the Cooper Maseratis in twelfth and sixteenth place on the grid. Fuel injection problems forced Irwin out after 16 laps while running tenth, Spence doing his usual job of hanging around and taking advantage of retirements to finish fifth again. BRM skipped the Gold Cup and the teams crossed the Atlantic for the last two races of 1967. At Watkins Glen the two P83s started thirteenth and fourteenth and retired well short of half-distance on laps 35 and 41, both with engine problems.