The FW18 proved to be very successful during the season, as the car won twelve of the sixteen races and won the Constructors' Championship for Williams by a comfortable margin. Hill and Villeneuve fought a good-natured but close title fight between them, which was decided in the Englishman's favour at the final round in Japan after Villeneuve's car lost its right-rear wheel. This was after Williams team principal, Frank Williams, took the controversial decision to not re-sign Hill for the 1997 season. Also before the season concluded, designer Adrian Newey had been placed on "gardening leave" as he would join McLaren for 1998. The departures of Hill and Newey would signal the beginning of the end of Williams dominance in Formula One, only narrowly winning the Driver's title in 1997, and failing to win a race in 1998; although they remained competitive up until 2004, with Patrick Head at the helm of engineering.