| Teams 2003 Tropicana Twister 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | JD Motorsports | Jason White | Chevrolet |
| 1 | Phoenix Racing | Jamie McMurray | Dodge |
| 2 | Richard Childress Racing | Ron Hornaday, Jr. | Chevrolet |
| 4 | Biagi DenBeste Racing | Mike Wallace | Chevrolet |
| 5 | Hendrick Motorsports | Brian Vickers | Chevrolet |
| 7 | Evans Motorsports | Todd Bodine | Chevrolet |
| 10 | ppc Racing | Scott Riggs | Ford |
| 12 | FitzBradshaw Racing | Kerry Earnhardt | Chevrolet |
| 16 | Day Enterprise Racing | Larry Gunselman | Chevrolet |
| 17 | Reiser Enterprises | Matt Kenseth | Ford |
| 18 | Joe Gibbs Racing | Coy Gibbs | Chevrolet |
| 19 | Braun Motorsports | Casey Mears | Dodge |
| 20 | Joe Gibbs Racing | Mike Bliss | Chevrolet |
| 21 | Richard Childress Racing | Johnny Sauter | Chevrolet |
| 23 | Bill Davis Racing | Scott Wimmer | Chevrolet |
| 25 | Team Rensi Motorsports | Bobby Hamilton, Jr. | Ford |
| 26 | Carroll Racing | Kevin Grubb | Dodge |
| 27 | Brewco Motorsports | Joey Clanton | Pontiac |
| 30 | Braun Motorsports | Lance Norick | Dodge |
| 31 | Ted Marsh | Dave Blaney | Ford |
| 33 | BACE Motorsports | Tony Raines | Chevrolet |
| 34 | Frank Cicci Racing | Mike McLaughlin | Chevrolet |
| 37 | Brewco Motorsports | David Green | Pontiac |
| 38 | Akins Motorsports | Kasey Kahne | Ford |
| 39 | Jay Robinson Racing | Jamie Mosley | Ford |
| 44 | GIC-Mixon Motorsports | Mike Harmon | Chevrolet |
| 46 | Lewis Motorsports | Ashton Lewis | Chevrolet |
| 48 | Innovative Motorsports | Shane Hmiel | Chevrolet |
| 49 | Jay Robinson Racing | Derrike Cope | Ford |
| 52 | Jimmy Means Racing | Mike Potter | Ford |
| 53 | Tennessee Mountain Boys Racing | Brad Teague | Chevrolet |
| 55 | Andy Petree Racing | Paul Menard | Chevrolet |
| 57 | ppc Racing | Jason Keller | Ford |
| 59 | Frank Schwantz | Stacy Compton | Chevrolet |
| 73 | Daryl Spoerl | Jason Schuler | Ford |
| 77 | Moy Racing | Jimmy Kitchens | Ford |
| 81 | Leik Motorsports | Dwayne Leik | Chevrolet |
| 82 | FitzBradshaw Racing | Casey Atwood | Chevrolet |
| 87 | NEMCO Motorsports | David Reutimann | Chevrolet |
| 88 | NEMCO Motorsports | Joe Nemechek | Chevrolet |
| 91 | Stanton Barrett Motorsports | Stanton Barrett | Pontiac |
| 96 | Ortec Racing | Josh Richeson | Pontiac |
| 99 | Michael Waltrip Racing | Michael Waltrip | Chevrolet |