Danica Patrick smiles as she listens to questions at a news conference at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. Patrick will attend Sunday's NASCAR Nationwide Series auto race. (AP Photo/Nam Y. Huh)

Danica Patrick checks her hair during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Parker Kligerman, left, smiles as he talks with James Buescher during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Danica Patrick looks at her car during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Danica Patrick speaks at a news conference at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. Patrick will attend Sunday's NASCAR Nationwide Series auto race. (AP Photo/Nam Y. Huh)

Danica Patrick checks her car during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Kyle Busch, right, listens to Kyle Busch Motorsports general manager Rick Ren during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Danica Patrick drives her car during final practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Danica Patrick is reflected in a mirror as she sits in her car during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Travis Pastrana (99) and Mike Bliss (44) drive their cars during the final practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Travis Pastrana drives his car during practice for Sunday's NASCAR Nationwide Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

Todd Bodine waits during qualifying for the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Ty Dillon, right, talks with a crew member during qualifying for the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Ty Dillon, cdnter, stands on pit road during qualifying for the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Kevin Swindell celebrates in victory lane after winning the ARCA Racing Series auto race, at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

NASCAR trucks start the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Auto racing fans watch the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Timothy Peters competes in the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Auto racing fans attend the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Auto racing fans attend the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Competitors start the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

NASCAR trucks drivers compete in the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

Ty Dillon (3) drives past James Buescher (31) during the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

Ty Dillon, right, signs autographs for fans before the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Brendan Gaughan competes in the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

James Buescher drives in the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. Buescher won the race.(AP Photo/Warren Wimmer)

James Buescher holds the trophy as he celebrates in victory lane after winning the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

James Buescher crosses the finish line to win the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

James Buescher holds the trophy in victory lane after winning the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Nam Y. Huh)

Parker Kligerman (29) drives past David Starr (81) and Johnny Sauter (13) during the NASCAR Camping World Truck Series auto race at Chicagoland Speedway in Joliet, Ill., Saturday, July 21, 2012. (AP Photo/Warren Wimmer)

FILE - This July 21, 2012 file photo shows Travis Pastrana smiling as he speaks at a news conference at Chicagoland Speedway in Joliet, Ill. X Games star Pastrana will drive the full NASCAR Nationwide Series schedule this year in Roush Fenway's No. 60 Ford Mustang. Roush Fenway co-owner Jack Roush and Pastrana announced the move Thursday, Jan. 3, 2013. (AP Photo/Nam Y. Huh, File)