The 1991 GM Goodwrench 500 was the third stock car race of the 1991 NASCAR Winston Cup Series season and the 26th iteration of the event.

With the assist of a late caution with 14 laps to go in the race, SABCO Racing driver Kyle Petty would manage to catch up and pass for the lead on the ensuing restart with 11 laps to go to take his fourth career NASCAR Winston Cup Series victory and his only victory of the season.

North Carolina Motor Speedway was opened as a flat, one-mile oval on October 31, 1965.

In 1969, the track was extensively reconfigured to a high-banked, D-shaped oval just over one mile in length.

Kyle Petty, driving for SABCO Racing, would win the pole, setting a time of 24.538 and an average speed of 149.205 miles per hour (240.122 km/h) in the first round.