F1 testing: Sebastian Vettel fastest on day two in Jerez

Ferrari's Sebastian Vettel sets the pace again on day two of the first pre-season test in Jerez as McLaren-Honda continued to struggle.

The German was 0.833 seconds clear of Sauber's Felipe Nasr, with Lewis Hamilton fourth fastest despite missing the final three hours of running because of a water leak caused by a failed part.

Jenson Button managed only six laps in the McLaren as problems continued to compromise the team's test.

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