Jenson Button of Great Britain and McLaren drives his car during a test session at the Montmelo racetrack near of Barcelona, Spain, Friday, Feb. 22, 2013 . (AP Photo/Manu Fernandez)

 

              Jenson Button of Great Britain and McLaren drives his car during a test session at the Montmelo racetrack near of Barcelona, Spain, Friday, Feb. 22, 2013 . (AP Photo/Manu Fernandez)
Jenson Button of Great Britain and McLaren drives his car during a test session at the Montmelo racetrack near of Barcelona, Spain, Friday, Feb. 22, 2013 . (AP Photo/Manu Fernandez)