Williams, Prost was given power of veto over whom the team would employ as his teammate. He refused to drive alongside Senna again, since he still had issues with him stemming from their time together at McLaren. Senna, who criticized Prost for the decision, would eventually return to McLaren for one final year driving Ford-powered machines, doing so on a race-to-race basis for the entire season. Meanwhile, Williams promoted Damon Hill to replace Patrese in their other entry. 1993 season The Williams FW15C was an extremely dominant car, with active suspension and traction control systems beyond anything available to the other teams. Prost won on his debut for the team in South Africa and, like Mansell, dominated the weekend, taking pole position and finishing a minute ahead of Senna, who was second. The next Grand Prix in Brazil saw Prost collide with Christian Fittipaldi's Minardi in the rain on lap 29, while Hill went on to his first podium finish: second, 16 seconds behind Senna. Prost won three of the next four Grands Prix for Williams, Senna winning the other race. Prost and Hill later scored a 1–2 in France: the only 1–2 of the season for Williams. Prost won the next two Grands Prix at Silverstone and Hockenheim. Hill proved competitive especially in the second half of the season. Mechanical problems cost Hill leads in Britain and Germany, but he went on to win the next three Grands Prix at Hungary, Belgium and Italy which moved him to second in the standings, as well as giving him a chance of taking the Drivers' title. After Italy, Williams would not win a Grand Prix for the rest of the season, as a young Michael Schumacher won the following race in Portugal, and Senna took Japan and Australia to overtake Hill in the points. Williams retained their Constructors' title, 84 points ahead of second-placed McLaren. Prost clinched the Drivers' Championship in Portugal and finished the season 26 points ahead of second-placed Senna. Based on his victory in the 1992 World Championship, Mansell would have been issued car number 1 for the 1993 season, and his teammate issued number 2. However, Mansell's move to the IndyCar series meant that number 1 was not issued; instead, the team was issued the number 0, which was placed on Hill's car, while Prost was issued number 2. 1993 marked the final season that Williams ran