NASCAR Sprint Cup Series champion Jimmie Johnson waves to the crowd after performing a burnout during a victory lap on the Las Vegas...

FILE - This is a Nov. 19, 2009, file photo showing NASCAR driver Jimmie Johnson during a news conference for the NASCAR Sprint Cup Series, in Coral Gables, Fla. Jimmie Johnson...

Jimmie Johnson crew chief Chad Knaus waits for the start of the Amp Energy 500 NASCAR Sprint Cup...

Driver Jimmie Johnson, left, talks with crew chief Chad Knaus during practice for Sunday's NASCAR Sprint Cup Checker...

Jimmie Johnson, left, jokes with crew chief Chad Knaus, center, and team owner Rick Hendrick, right, after winning...

Jimmie Johnson poses with his trophies after an unprecedented fourth straight NASCAR Sprint Cup title

Fourth For No. 48

Jimmie Johnson poses with his championship trophies after winning his fourth straight NASCAR Sprint Cup Series Championship at...

NEW YORK - NOVEMBER 24: NASCAR championship driver Jimmie Johnson poses for pictures on the uppermost level of The Empire State Building in celebration of Jimmie...

November 22, 2009; Homestead, FL, USA; NASCAR Sprint Cup Series driver Jimmie Johnson (48) poses for photos after winning the 2009 Sprint Cup after the Ford 400 at Homestead...

Jimmie Johnson is shown during practice for the NASCAR Ford 400 Sprint Cup series auto race at the...

Jimmie Johnson, left, raises the trophy with NASCAR chairman Brian France, right, after winning the NASCAR Sprint Cup...

Jimmie Johnson celebrates after winning the NASCAR Sprint Cup Series season championship at Homestead-Miami Speedway in Homestead...

Jimmie Johnson performs a burnout as he heads to victory lane after winning the NASCAR Sprint Cup series...

Jimmie Johnson celebrates after winning the NASCAR Sprint Cup Series season championship, at Homestead-Miami Speedway in Homestead...

Nov. 22, 2009; Homestead, FL, USA; NASCAR Sprint Cup Series driver Jimmie Johnson celebrates after winning the 2009 Sprint Cup championship following the Ford 400 at Homestead Miami Speedway...