Felipe Massa took over from Lewis Hamilton as the driver to beat on Day One while the Brit joined former team-mate Jenson Button on the sidelines. Although Hamilton set the pace on Thursday morning at the Circuit de Barcelona-Catalunya, he never made it back out onto the track after lunch. Mercedes revealed that a 'failure in the hybrid system' was keeping the W06 in the garage while later adding the 'problem diagnosed as MGUK failure' and as such their day was done. That meant just six teams took to the track after lunch as Force India were waiting on their new VJM08 while McLaren had already announced that a 'hydraulic leak' had curtailed Button's day after a measly seven laps. One...
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