MONTMELO, SPAIN - FEBRUARY 22:  (L-R) Managing Director of Mercedes GP Performance Powertrains, Andy Cowell, Lewis Hamilton of Great Britain and Mercedes GP, Mercedes GP Executive Director Toto Wolff and Nico Rosberg of Germany and Mercedes GP and Paddy Lowe, Mercedes Technical Executive Director pose at the unveiling of the new W07 car outside the garage during day one of F1 winter testing at Circuit de Catalunya on February 22, 2016 in Montmelo, Spain.  (Photo by Mark Thompson/Getty Images)