that Japanese manufacturer Toyota would be supplying the engines for the season. In addition, the Toyota engine customer deal also included Magneti Marelli Step 11 engine control unit (ECU) systems as it was used by works Toyota team. A number of other changes were announced for 2007: Alexander Wurz, who had been a test driver at Williams since 2006, became the team's second driver to replace the outgoing Mark Webber; Japanese driver Kazuki Nakajima, son of Satoru, replaced Wurz as a test driver alongside Karthikeyan. Sponsorship saw a change in 2007, as it was announced that AT&T would become the title sponsors for the team from the upcoming season. AT&T was previously involved as minor sponsors with the Jaguar and McLaren teams but moved to Williams following McLaren's announcement of a title sponsorship deal with Vodafone, a competitor of AT&T. On 2 February, the new FW29 was presented to the media in the UK. Soon afterwards, the team secured a sponsorship deal with Lenovo who built the team's new supercomputer. Rosberg and Wurz gave Williams a more productive season in terms of points and, in Montreal, Wurz scored the team's first podium finish since Nick Heidfeld's second-place at the 2005 European Grand Prix. Over the course of the year, Rosberg was consistently in the points, scoring 20 during the season; in comparison, teammate Wurz finished in the points three times. Following the announcement that Wurz would be retiring from the sport, Williams brought in their young test driver Nakajima to drive the second car for them in the final race in Brazil. The Japanese driver finished in tenth despite starting from near the back of the grid, while Rosberg enjoyed his best race of the season, finishing in fourth. Williams finished fourth in the Constructors' Championship that year. For the season, Williams confirmed Nico Rosberg and Kazuki Nakajima as their race drivers. Rosberg was confirmed as staying with Williams until the end of on 9 December 2007, ending speculation that he could take Fernando Alonso's vacated seat at McLaren. During the Winter testing sessions, the team ran six different liveries to celebrate their 30th year in the sport and their 500th Grand Prix. The 2008 season was a mixture of success and disappointment for Williams. While Rosberg managed to obtain 2 podiums in Australia and Singapore, the team struggled at circuits with high-speed corners. The fact that the team was