Lewis Hamilton was fastest by almost two seconds on the final day of in-season testing in Bahrain as Ferrari left early.

Mercedes tested tyres for Pirelli on Wednesday and Hamilton set a best time of 1:34.136 on a development tyre in the morning session to comfortably head the field, going on to complete 119 laps by the end of the day. Jean-Eric Vergne was second fastest for Toro Rosso and managed 64 laps despite causing a red flag by going off at Turn 4 in the morning, but was 1.421s slower than Hamilton's time.

It was a bad day for Ferrari as Fernando Alonso completed just 12 laps before bringing an end to its test. Ferrari is running Kimi Raikkonen's chassis from the race weekend and found that it may have been damaged after Raikkonen hit a kerb during FP1 last week.

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There were also more problems for Lotus as Romain Grosjean could only match Pastor Maldonado's Tuesday total of 16 laps on the second day. Again issue with the Renault power unit were to blame and Grosjean admitted it was "not acceptable" the team was limited to such little mileage.

Kevin Magnussen set the third fastest time for McLaren but brought the morning session to a premature end as he stopped in the gravel at Turn 13 with just over five minutes to run before lunch. As a result Magnussen was limited to just 26 laps and was two seconds off the pace after a late improvement.

Sergio Perez was fourth quickest for Force India after his podium performance on Sunday, completing 63 laps and ending the day 2.450s slower than Hamilton. Force India was working on evaluating some small performance parts ahead of next week's Chinese Grand Prix.

After a slow morning and a number of aero tests which left him without a representative time, Daniel Ricciardo managed to set the fifth fastest time late in the session with a 1:37.310. Marussia enjoyed the most productive morning with Jules Bianchi and ended the day with 93 laps in total - second only to Mercedes - as Bianchi ended the day just 0.006s slower than Ricciardo.

Giedo van der Garde was seventh quickest for Sauber despite a power unit issue restricting his morning running, ahead of Alonso, Marcus Ericsson - who stopped with an ERS issue late in the day - Felipe Nasr testing tyres for Pirelli and Grosjean.