Using the JS25, the French team were able to score 23 points in 1985 and finished 6th in the Constructors Championship. Laffite was able to score two 3rd-place finishes and also a 2nd place at the season ending Australian Grand Prix where team mate Streiff also managed to finish 3rd, although his efforts to take 2nd from Laffite almost cause both cars to not finish the race. Streiff made contact with Laffite on the penultimate lap of the race and drove the last with his left front wheel almost off the car.