| Teams 2006 GM Flex-Fuel 250 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | R3 Motorsports | Robert Richardson, J | Dodge |
| 2 | Sutton Racing | Kelly Sutton | Chevrolet |
| 4 | Bobby Hamilton Racing | Kevin Hamlin | Dodge |
| 4 | Bobby Hamilton Racing | Timothy Peters | Dodge |
| 5 | Bill Davis Racing | Mike Skinner | Toyota |
| 6 | Roush Racing | Mark Martin | Ford |
| 07 | SS Green Light Racing | Sean Murphy | Chevrolet |
| 08 | SS Green Light Racing | Bobby Hamilton, Jr. | Dodge |
| 8 | Ray Montgomery | Chase Montgomery | Dodge |
| 9 | Germain Racing | Ted Musgrave | Toyota |
| 10 | ppc Racing | Terry Cook | Ford |
| 11 | Red Horse Racing | David Starr | Toyota |
| 12 | Darrell Waltrip Motorsports | Joey Miller | Toyota |
| 13 | ThorSport Racing | Kerry Earnhardt | Chevrolet |
| 14 | Circle Bar Racing | Rick Crawford | Ford |
| 15 | Billy Ballew Motorsports | Kyle Krisiloff | Chevrolet |
| 16 | Xpress Motorsports | Mike Bliss | Chevrolet |
| 17 | Darrell Waltrip Motorsports | David Reutimann | Toyota |
| 18 | Bobby Hamilton Racing | Bobby Hamilton | Dodge |
| 20 | Wood Brothers Racing | Jon Wood | Ford |
| 21 | Wood Brothers Racing | Stacy Compton | Ford |
| 22 | Bill Davis Racing | Bill Lester | Toyota |
| 23 | Bill Davis Racing | Johnny Benson, Jr. | Toyota |
| 25 | Woodard Racing | Boston Reid | Dodge |
| 29 | K-Automotive Performance | Brad Keselowski | Ford |
| 30 | Germain Racing | Todd Bodine | Toyota |
| 33 | Kevin Harvick Incorporated | Ron Hornaday, Jr. | Chevrolet |
| 47 | Dollar Racing | Kraig Kinser | Chevrolet |
| 59 | HT Motorsports | Mike Wallace | Dodge |
| 60 | Wyler Racing | Jack Sprague | Toyota |
| 75 | Spears Motorsports | Aric Almirola | Chevrolet |
| 77 | Orleans Racing | Brendan Gaughan | Dodge |
| 85 | Dollar Racing | Dennis Setzer | Chevrolet |
| 88 | ThorSport Racing | Matt Crafton | Chevrolet |
| 98 | Evernham Motorsports | Erin Crocker | Dodge |
| 99 | Roush Racing | Erik Darnell | Ford |