Fans gather at the Charlotte Convention Center during NASCAR Preview 2013 events, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Rusty Wallace talks to fans, while Leonard Wood, of Wood Brothers Racing, waits his turn during NASCAR Preview 2013 activities, Saturday, Feb. 9, 2013, in Charlotte, N.C. The two were inducted into the NASCAR Hall of Fame on Friday night. (AP Photo/Bob Leverone)

Jamie McMurray talks to a young fan as he signs a cap during NASCAR Preview 2013, Saturday, Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Justin McAbee, of Lyman, S.C., thanks driver Jeff Gordon for autographing his poster of Gordon winning a race at Charlotte Motor Speedway, during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Joey Lagano laughs with fans as he signs autographs during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Jeff Gordon talks to fans during a question and answer session during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Kyle Busch signs a large toy M&M for Tom Hetrick, of Akron, Ohio, during NASCAR Preview 2013, Saturday, Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Glen Loftis of Simpsonville, S.C. smiles as he poses with Carl Edwards for a photo taken by Loftis' wife, Connie, during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Dale Earnhardt Jr. talks about his hopes for the upcoming season, during NASCAR Preview 2013, Saturday, Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Clint Bowyer listens as fellow driver Tony Stewart talks with fans about the upcoming season, during NASCAR Preview 2013, Saturday, Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Clint Bowyer chuckles as Tony Stewart answers questions for fans durin NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Danica Patrick steadies herself as she signs a portion of a car hood for Dan Peabody, front left, of Belmont, N.C., during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Trevor Bayne takes a break from signing autographs for a quick photo for a fan during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Dale Earnhardt Jr. signs autographs for fans as he makes his way out of the convention center following his autograph session during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Defending Sprint Cup champions Brad Keselowski hands back an autographed item to a fan during NASCAR Preview 2013, Saturday, Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Darrell Wallace Jr. talks with reporters about his announcement to run a full season in NASCAR's Camping World Truck Series for Kyle Busch Motorsports, during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)

Tevor Bayne looks up with a smile for fans as he sits next to Dale Earnhardt Jr., center, while signing autographs during NASCAR Preview 2013, Saturday Feb. 9, 2013, in Charlotte, N.C. (AP Photo/Bob Leverone)