JEREZ DE LA FRONTERA, SPAIN - FEBRUARY 05: Flames erupt from the W04 belonging to Nico Rosberg of Germany and Mercedes GP during Formula One winter testing at Circuito de Jerez on February 5, 2013 in... more 

JEREZ DE LA FRONTERA, SPAIN - FEBRUARY 05: Flames erupt from the W04 belonging to Nico Rosberg of Germany and Mercedes GP during Formula One winter testing at Circuito de Jerez on February 5, 2013 in Jerez de la Frontera, Spain. (Photo by Paul Gilham/Getty Images) less