| Teams 1991 Champion Spark Plug 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Precision Products Racing | Rick Mast | Oldsmobile |
| 2 | Team Penske | Rusty Wallace | Pontiac |
| 3 | Richard Childress Racing | Dale Earnhardt | Chevrolet |
| 4 | Morgan McClure Motorsports | Ernie Irvan | Chevrolet |
| 5 | Hendrick Motorsports | Ricky Rudd | Chevrolet |
| 6 | Roush Racing | Mark Martin | Ford |
| 7 | AK Motorsports | Alan Kulwicki | Ford |
| 8 | Stavola Brothers Racing | Rick Wilson | Buick |
| 9 | Melling Racing | Bill Elliott | Ford |
| 10 | Bob Whitcomb Racing | Derrike Cope | Chevrolet |
| 12 | Bobby Allison Motorsports | Hut Stricklin | Buick |
| 13 | Linro Motorsports | Randy LaJoie | Buick |
| 15 | Bud Moore Engineering | Morgan Shepherd | Ford |
| 17 | Darrell Waltrip Motorsports | Darrell Waltrip | Chevrolet |
| 19 | Little Racing | Chad Little | Ford |
| 21 | Wood Brothers Racing | Dale Jarrett | Ford |
| 22 | Junior Johnson and Associates | Sterling Marlin | Ford |
| 24 | Team III Racing | Mickey Gibbs | Pontiac |
| 25 | Hendrick Motorsports | Ken Schrader | Chevrolet |
| 26 | King Racing | Brett Bodine | Buick |
| 28 | Yates Racing | Davey Allison | Ford |
| 30 | Bahari Racing | Michael Waltrip | Pontiac |
| 33 | Leo Jackson Motorsports | Harry Gant | Oldsmobile |
| 41 | Larry Hedrick Motorsports | Larry Pearson | Chevrolet |
| 42 | Team Sabco | Bobby Hillin, Jr. | Pontiac |
| 43 | Petty Enterprises | Richard Petty | Pontiac |
| 48 | Hylton Engineering | James Hylton | Chevrolet |
| 52 | Jimmy Means Racing | Jimmy Means | Pontiac |
| 55 | US Racing | Ted Musgrave | Pontiac |
| 66 | Cale Yarborough Motorsports | Lake Speed | Pontiac |
| 68 | TriStar Motorsports | Bobby Hamilton | Oldsmobile |
| 70 | McDuffie Racing | J.D. McDuffie | Pontiac |
| 71 | Marcis Auto Racing | Dave Marcis | Chevrolet |
| 75 | RahMoc Entrprises | Joe Ruttman | Oldsmobile |
| 94 | Hagan Racing | Terry Labonte | Oldsmobile |
| 97 | Junior Johnson and Associates | Geoffrey Bodine | Ford |
| 98 | Travis Carter Enterprises | Jimmy Spencer | Chevrolet |