during his first few seasons in Formula One. Frentzen proved to be a disappointment though, and won only one race in two years with Williams, the 1997 San Marino Grand Prix. Jacques Villeneuve won seven races during 1997, compared to five wins by his main rival, Michael Schumacher of a resurgent Ferrari. Williams also achieved the 100-race-win milestone at the British Grand Prix. Coming to the final round of the season at Jerez, Schumacher led Villeneuve by 1 point; however, on lap 48, Schumacher and Villeneuve collided. Schumacher was disqualified from second place in the championship as the accident was deemed by the FIA as "avoidable". Williams won the Constructors' title for the second time in a row, scoring 123 points. Jacques Villeneuve won the Drivers' Championship by three points to Michael Schumacher, who kept his points total despite being removed from second place; thus, runner-up went to Frentzen with 42 points. Mecachrome engines (1998) 1998 season After 1997, the team was unable to maintain their dominance in Formula 1 as Renault ended their full-time involvement in Formula 1, and Adrian Newey moved to the rival team, McLaren. Williams then had to pay for Mecachrome engines, which were old, rebadged Renault F1 engines. This meant that the FW20 not only featured a very similar aerodynamic package to their 1997 car but also virtually the same engine, leading some to comment that they ran what was virtually the same car, adjusted for the 1998 regulations. There were changes on the sponsorship front, as Rothmans opted to promote their Winfield brand, replacing the popular blue and white livery with a red one. For , Williams kept both drivers from the previous season, the first time since that a reigning world champion remained driving for the team. While Ferrari and McLaren battled for the Constructors' and Drivers' titles, Williams fell to the middle of the field. The team won no races and took only 3 podiums during the season, with Frentzen finishing in third at the first round in Australia and Villeneuve finishing third in Germany and Hungary. Williams finished third in the Constructors' Championship, scoring 38 points, while Villeneuve finished fifth in the Drivers' Championship with 21 points, and his German teammate, Frentzen, finished 4 points behind him in seventh. Supertec engines (1999) 1999 season In , Williams employed the Supertec engine, which was a rebadged Mecachrome-Renault unit, and a new driver