Sauber front view

daniel-ricciardo fernando-alonso ferrari-f138 ferrari-f14-t kimi-raikkonen launch lewis-hamilton lotus-e21 mercedes-f1-w05 nico-hulkenberg nico-rosberg pitlane rear-wing red-bull-rb10 red-bull-rb9 romain-grosjean sebastian-vettel sergio-perez test valtteri-bottas