| Teams 1991 Champion Spark Plug 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Bill Davis Racing | Jeff Gordon | Ford |
| 3 | Dale Earnhardt Inc. | Dale Earnhardt | Chevrolet |
| 5 | Eclipse Racing | Richard Lasater | Pontiac |
| 5 | Ard Motorsports | Robert Powell | Pontiac |
| 6 | Houston Racing | Tommy Houston | Buick |
| 7 | Whitaker Racing | Harry Gant | Buick |
| 8 | FILMAR Racing | David Green | Oldsmobile |
| 8 | Team R Racing | Bobby Dotter | Buick |
| 10 | Ernie Irvan Racing | Ernie Irvan | Chevrolet |
| 11 | Ingram Racing | Jack Ingram | Chevrolet |
| 15 | Ken Schrader Racing | Ken Schrader | Chevrolet |
| 17 | Darrell Waltrip Motorsports | Darrell Waltrip | Chevrolet |
| 19 | Levin Racing | Cecil Eunice | Oldsmobile |
| 23 | Folsom Racing | Dave Mader III | Buick |
| 25 | Beverly Racing | Jimmy Hensley | Oldsmobile |
| 27 | A.G. Dillard Motorsports | Elton Sawyer | Buick |
| 28 | Bobby Allison Motorsports | Davey Allison | Chevrolet |
| 29 | Phil Parsons Racing | Phil Parsons | Oldsmobile |
| 30 | Bahari Racing | Michael Waltrip | Pontiac |
| 31 | Grissom Racing | Steve Grissom | Oldsmobile |
| 33 | Pharo Racing | Ed Berrier | Oldsmobile |
| 34 | Frank Cicci Racing | Todd Bodine | Buick |
| 36 | Rusty Wallace Racing | Kenny Wallace | Pontiac |
| 39 | Hamilton Means Racing | Robert Huffman | Oldsmobile |
| 44 | Labonte Racing | Bobby Labonte | Oldsmobile |
| 45 | Laughlin Racing | Jeff Burton | Pontiac |
| 48 | Fred Turner Racing | Jack Sprague | Oldsmobile |
| 49 | Ferree Racing | Ed Ferree | Buick |
| 51 | H&H Motorsports | Mike McLaughlin | Oldsmobile |
| 52 | Day Enterprise Racing | Butch Miller | Chevrolet |
| 59 | Alliance Motorsports | Robert Pressley | Oldsmobile |
| 63 | Hensley Motorsparts | Chuck Bown | Pontiac |
| 72 | Parker Racing | Tracy Leslie | Oldsmobile |
| 75 | Henderson Motorsports | Ward Burton | Chevrolet |
| 79 | K.R. Rezendes, Inc. | Dave Rezendes | Oldsmobile |
| 87 | NEMCO Motorsports | Joe Nemechek | Chevrolet |
| 92 | Martin Racing | Dick Trickle | Chevrolet |
| 94 | Labonte Motorsports | Terry Labonte | Oldsmobile |
| 96 | Mark Thomas Racing | Tom Peck | Oldsmobile |
| 97 | Shepherd Racing Ventures | Morgan Shepherd | Ford |