The 2005 UAW-GM Quality 500 was the stock car racing race of the 2005 NASCAR Nextel Cup Series season, the fifth race of the 2005 Chase for the Nextel Cup, and the 46th iteration of the event. The race was held on Saturday, October 15, 2005, before a crowd of 165,000 in Concord, North Carolina, at Lowe's Motor Speedway, a 1.5 miles (2.4 km) permanent quad-oval. The race was extended from its scheduled 334 laps to 336 laps due to a green–white–checker finish. At race's end, Jimmie Johnson of Hendrick Motorsports would hold off the field on the final restart to win his 18th career NASCAR Nextel Cup Series win and his fourth and final win of the season. To fill out the podium, Kurt Busch and Greg Biffle of Roush Racing would finish second and third, respectively.