During this time the car scored its only win when Thierry Boutsen (who had replaced Mansell in the team) scored his first win at the rain affected Canadian Grand Prix, and with Patrese finishing second it was Williams's first 1–2 result since the 1987 Mexican Grand Prix. Patrese, who had his best season to date after consecutive 2nd-place finishes in Mexico, Phoenix and Canada, followed by a 3rd in France, also scored the car's only pole position at the Hungarian Grand Prix. He then comfortably led the race until lap 54 when a hole in the radiator caused the car to overheat into retirement.