Barcelona Testing – McLaren have had to change the power unit in their car for the second time in two days. The Woking-based team required an engine change on Monday following a suspected oil system issue, which cost Fernando Alonso half a day of running. Stoffel Vandoorne took over from the Spaniard for Tuesday but he will now lose significant running as well, as a further power unit change is needed. “We have lost power to the PU,' a spokesperson said. 'At the moment we don't know what has caused the issue. We are currently changing the PU in order to investigate fully and identify the cause.' McLaren admitted that Alonso’s problems on Monday came as a surprise, after running...
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