Massa fastest for Williams as McLaren toil on day one

Felipe Massa laid down an impressive marker for Williams on the opening day of the final pre-season test of 2015 in Spain, as McLaren were once again restricted by technical problems. Massa hit the front early on Thursday afternoon, bolting on Pirelli's soft-compound tyre and scything down to a 1m 23.500s - the fastest time seen so far this year in Barcelona

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