Butch Leitzinger won the IMSA WSC driver titles in 1997 and 1998 and James Weaver won the United States Road Racing Championship (USRRC) Can-Am championship in 1998. 1997 was their best year to date. It started with their first win in the Daytona 24 Hours and ended with six wins total. Butch Leitzinger was first, Elliott Forbes-Robinson second and James Weaver third in the IMSA Drivers’ Championship and the team won its first Team Championship. The team competed with its R&S Mk. III-Fords and won titles in two different series again in 1999. Elliott Forbes-Robinson won the inaugural American Le Mans Series (ALMS], while Elliott Forbes-Robinson and Butch Leitzinger shared the Grand-Am championship and the team won their second Daytona 24 Hour race. The team started the inaugural 1999 ALMS season with a thrilling second-place finish in the 12 Hours of Sebring, the closest finish in that race's history. The team had committed early to the new Reynard 2KQ chassis to defend their ALMS title but early testing at Daytona showed it far off the pace and the chassis was jettisoned immediately. Dyson Racing resurrected the Riley and Scott Fords and won the inaugural Grand American Road Racing Association (Grand-Am) SR1 Championship with James Weaver. Highlights included a class win at the Daytona 24 Hours and four wins, including the Six Hours of Watkins Glen. The team repeated their 2000 Grand-Am championships in 2001, with six wins and another Team Championship. James Weaver once again claimed the driver's title and Butch Leitzinger came second. The team continued its dominance in its last full year in Grand-Am in 2002 with seven series wins and first in the Team Championship. Chris Dyson, who had made his team debut at the 2001 Watkins Glen International 250, finished second in the 2002 Driver's championship with five wins and claimed Rookie of the Year honors. Despite scoring no points at the Rolex 24 Hours, Dyson missed winning the title by only two points. All told the team's Riley and Scott MkIII cars claimed thirty-eight victories, with two overall and two class wins at the Daytona 24 Hours, between 1995 and 2002. Seeking the missing jewel in the team's crown, the 12 Hours of Sebring, the team committed to Riley and Scott's latest creation, the Mk3C, in 2001, introducing it at the 12 Hours of Sebring. This coincided with the return of a brace of factory and customer Audi R8s.