Bottas tops first day of young driver testing at Silverstone

Pos Driver Team Time Behind
1. Valtteri Bottas Williams-Renault 1m31.436s +0.000s
2. Max Chilton Marussia-Cosworth 1m36.558s +5.122s
3. Rio Haryanto Marussia-Cosworth 1m37.404s +5.968s
4. Ma Qing Hua HRT-Cosworth 1m37.829s +6.393s