MONTMELO, SPAIN - MARCH 01: Jenson Button of Great Britain and McLaren Honda exits the garage during day four of the final Formula One Winter Testing at Circuit de Catalunya on March 1, 2015 in Montmelo, Spain. (Photo by Mark Thompson/Getty Images)
MONTMELO, SPAIN - MARCH 01: Jenson Button of Great Britain and McLaren Honda exits the garage during day four of the final Formula One Winter Testing at Circuit de Catalunya on March 1, 2015 in Montmelo, Spain. (Photo by Mark Thompson/Getty Images)