| abstract
| - Dale Earnhardt Inc. and Chip Ganassi Racing merged to form Earnhardt-Ganassi Racing Petty Enterprises and Gillett Evernham Motorsports to form Richard Petty Motorsports Tony Stewart co-ownership with Haas CNC Racing to form Stewart Haas Racing.
* 5 teams will debut this season: Tommy Baldwin Racing,Prism Motorsports,#64 (owned by Larry Gunselman), #41 (owned by Jeremy Mayfield) and Nationwide Series team JTG Daugherty Racing will make its fulltime Cup debut.
* Nationwide Series driver Joey Logano will drive the #20 Toyota[1].
* The #66 & #70 will become the #14 (#70) and #39 (#66) Chevrolets [2] [3].
* Ryan Newman will drive the #39 U.S. Army Chevrolet.
* Ford will begin running its 2010 model Fusion.
* Richard Childress Racing will field a fourth car, the #33 Cheerios Chevrolet driven by Clint Bowyer.
* Casey Mears has joined RCR driving the #07 Jack Daniels Chevrolet.
* Caterpillar will sponsor the #31 Chevrolet.
* Paul Menard will drive the #98 Menards Ford for Yates Racing.
* Mark Martin will drve the #5 Hendrick Motorsports Chevrolet.
* UPS will sponsor the #6 Roush Racing Ford.
* David Stremme will drive the #12.
* Cheerios will sponsor the #43, it will be driven by Reed Sorenson.
* The #44 is now be owned by Richard Petty Motorsports, it will be driven by A.J. Allmendinger and sponsored by Valvoline.
* David Reutimann will drive the #00, with Aarons returning as sponsor.
* The #10 will close, its team and driver points will go to #44.
* Juicy Fruit and Big Red will sponsor the #42.
* Roush Racing sponsor the #99 Ford.
* Bill Davis Racing may not run this season, the #22 is unsponsored.
* Regan Smith will drive the #78 Chevrolet.
* Bobby Labonte will drive the #96 Hall of Fame Racing Toyota.
* The #38 has closed its team and drivers points will go to #96.
* Bill Elliott will drive the #21 but a sponsor is needed.
* Marcos Ambrose (driver of the #47 Little Debbies Toyota) will attempt a full Cup season.
* The status of the #28 has yet to be determined, Kvapil has resigned.
* Robby Gordon will return with sponsor Jim Beam
* Verizon Wireless bought out Alltel and take over as sponsor of the #12.
* Elliott Sadler has resigned and will return in the #19.
* Crew chief Tommy Baldwin has formed his own team Tommy Baldwin Racing, he will field the #36 Toyota driven by Scott Riggs.
* Terry Labonte and Prism Motorsports will attempt a full season with thier #66 Toyota.
* Larry Gunselman plans to field the #64 Toyota full time.
* The #41 is now #39 driven by John Andretti.
* Jeremy Mayfield got right to use the #41, he plans to run a full cup season in the #41 All Sport Toyota.
* Scott Riggs is no longer driving the #36 Toyota, it is now driven by Mike Skinner and Patrick Carpentier.
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