| Teams 2006 Auto Club 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | MB2 Motorsports | Joe Nemechek | Chevrolet |
| 1 | Dale Earnhardt Inc. | Martin Truex, Jr. | Chevrolet |
| 2 | Team Penske | Kurt Busch | Dodge |
| 4 | Morgan McClure Motorsports | Scott Wimmer | Chevrolet |
| 5 | Hendrick Motorsports | Kyle Busch | Chevrolet |
| 6 | Roush Racing | Mark Martin | Ford |
| 7 | Richard Childress Racing | Clint Bowyer | Chevrolet |
| 7 | Robby Gordon Motorsports | Robby Gordon | Chevrolet |
| 8 | Dale Earnhardt Inc. | Dale Earnhardt, Jr. | Chevrolet |
| 9 | Evernham Motorsports | Kasey Kahne | Dodge |
| 10 | MBV Motorsports | Scott Riggs | Dodge |
| 11 | Joe Gibbs Racing | Denny Hamlin | Chevrolet |
| 12 | Team Penske | Ryan Newman | Dodge |
| 14 | MB2 Motorsports | Sterling Marlin | Chevrolet |
| 16 | Roush Racing | Greg Biffle | Ford |
| 17 | Roush Racing | Matt Kenseth | Ford |
| 18 | Joe Gibbs Racing | J.J. Yeley | Chevrolet |
| 19 | Evernham Motorsports | Jeremy Mayfield | Dodge |
| 20 | Joe Gibbs Racing | Tony Stewart | Chevrolet |
| 21 | Wood Brothers Racing | Ken Schrader | Ford |
| 22 | Bill Davis Racing | Dave Blaney | Dodge |
| 24 | Hendrick Motorsports | Jeff Gordon | Chevrolet |
| 25 | Hendrick Motorsports | Brian Vickers | Chevrolet |
| 26 | Roush Racing | Jamie McMurray | Ford |
| 29 | Richard Childress Racing | Kevin Harvick | Chevrolet |
| 31 | Richard Childress Racing | Jeff Burton | Chevrolet |
| 38 | Yates Racing | Elliott Sadler | Ford |
| 40 | Chip Ganassi Racing | David Stremme | Dodge |
| 41 | Chip Ganassi Racing | Reed Sorenson | Dodge |
| 42 | Chip Ganassi Racing | Casey Mears | Dodge |
| 43 | Petty Enterprises | Bobby Labonte | Dodge |
| 45 | Petty Enterprises | Kyle Petty | Dodge |
| 48 | Hendrick Motorsports | Jimmie Johnson | Chevrolet |
| 49 | BAM Racing | Brent Sherman | Dodge |
| 55 | Jasper Motorsports | Michael Waltrip | Dodge |
| 61 | SCORE Motorsports | Kevin Lepage | Dodge |
| 66 | Haas CNC Racing | Jeff Green | Chevrolet |
| 78 | Furniture Row Racing | Kenny Wallace | Chevrolet |
| 88 | Yates Racing | Dale Jarrett | Ford |
| 95 | Stanton Barrett Motorsports | Stanton Barrett | Chevrolet |
| 96 | Hall of Fame Racing | Terry Labonte | Chevrolet |
| 99 | Roush Racing | Carl Edwards | Ford |
| 127 | Competitive Edge Motorsports | Mike Garvey | Chevrolet |