The 1993 Champion Spark Plug 400 was the 20th stock car race of the 1993 NASCAR Winston Cup Series season and the eighth iteration of the event.

Taking advantage of a blown engine on dominant driver Ricky Rudd's car, Roush Racing driver Mark Martin would come to dominate the late stages of the race to take his ninth career NASCAR Winston Cup Series victory and his second victory of the season.

It is known as a "sister track" to Texas World Speedway as MIS's oval design was a direct basis of TWS, with moderate modifications to the banking in the corners, and was used as the basis of Auto Club Speedway.

Michigan International Speedway is recognized as one of motorsports' premier facilities because of its wide racing surface and high banking (by open-wheel standards; the 18-degree banking is modest by stock car standards).

Ken Schrader, driving for Hendrick Motorsports, would win the pole, setting a time of 39.834 and an average speed of 180.750 miles per hour (290.889 km/h) in the first round.