Lewis Hamilton missed Friday 's first session and some of the second . The Mercedes driver was forced to miss his team's final day at Silverstone after a crash in practice on Friday. The world champion says preparations have been 'heavily compromised ' Fernando Alonso returns to the track following crash in Australia .
Lewis Hamilton missed Friday 's first session and some of the second . Hamilton still set the fastest time in Malaysia despite the engine failure . The world champion says preparations have been 'heavily compromised ' Fernando Alonso returns to the track following crash in Australia .