Mario Gosselin is a Canadian-American professional stock car racing driver, crew chief, and team owner. He owns DGM Racing, a team that competes in the NASCAR Xfinity Series. In 2004, he became the second native of the Province of Quebec to start in a NASCAR Nextel Cup Series race after Superbike legend Yvon Duhamel. In 1997, he became the first Canadian to win the championship title for the NASCAR CARS Pro Cup Series.

The 2004 NASCAR Nextel Cup Series was the 56th season of professional stock car racing in the United States and the 33rd modern-era Cup series season. The season began on Saturday, February 7, and ended on Sunday, November 21. Kurt Busch, who drove a Ford for Roush Racing, was the Nextel Cup champion. It would be the last time until 2012 that the championship would be won by someone other than Tony Stewart or Jimmie Johnson.