The Williams FW29 was definitely an improvement over the disastrous Williams FW28, which only scored 11 points and was hugely unreliable. The FW29 proved a consistent challenger for points, but was well off the pace of the front running McLaren and Ferrari cars, and the new BMW Sauber team formed by Williams's old engine partners. Alexander Wurz had a mixed season, achieving an unlikely podium finish at the 2007 Canadian Grand Prix despite suffering a damaged rear wing caused by a collision with Vitantonio Liuzzi but had an unsuccessful second half of the season. However, Rosberg proved to be a faster driver, scoring frequent points finishes and consistently outpacing Wurz, particularly in the 2nd half of the season. Wurz decided to retire from F1 before the final race of the season, with test driver Kazuki Nakajima drafted in as his replacement. The team were classified in 4th place with 33 points, due to McLaren's expulsion from the Championship.