Formula One World Championship: Sebastian Vettel (GER) Ferrari, Esteban Gutierrez (MEX) Ferrari Test and Reserve Driver, Carlos Sainz jr (ESP) Scuderia Toro Rosso and Max Verstappen (NED) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd9, British Grand Prix, Preparations, Silverstone, England, Thursday 2 July 2015.
Sebastian Vettel (GER) Ferrari, Esteban Gutierrez (MEX) Ferrari Test and Reserve Driver, Carlos Sainz jr (ESP) Scuderia Toro Rosso and Max Verstappen (NED) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd9, British Grand Prix, Preparations, Silverstone, England, Thursday 2 July 2015.