In 2003, the team set out to win the Busch Series Owner's Championship with a sponsorship from The Hershey Company's PayDay brand. Cup Series driver Kevin Harvick was tabbed to drive 15 of the 34 races, with development driver Johnny Sauter filling out the rest of the schedule. Harvick ended up competing 19 races, with three wins and Top 10s in all but one race, and RCR became the first team to win an owner's points title with two different drivers. Harvick would serve as the team's anchor driver there afterwards, with Clint Bowyer doing the co-driving honors in 2004 and Brandon Miller in 2005 and sponsorships from Reese's Peanut Butter Cups. Jeff Burton drove the car at Bristol in 2005. In 2006, Harvick and Burton split the driving duties in the car with sponsorship from United States Coast Guard, as Harvick attempted to run the entire Busch Series schedule in three different cars. Burton won at Atlanta, and Harvick won three more races, pulling out to an over 700-point lead in the points standings with five races to go in the 2006 season. AutoZone replaced the sponsorship with Coast Guard in 2007, and Harvick drove along with development driver Timothy Peters, until Peters was replaced by dirt late model driver Tim McCreadie.