More from Barcelona Tests 2015
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Fernando Alonso suffered 'temporary memory loss' after his crash in testing
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Fernando Alonso 'could not recall the last 20 years of his life after testing crash'
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Toto Wolff reveals that Mercedes used just one engine during pre-season testing
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The talking points from the final winter test
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Nico Rosberg feeling optimistic for the 2015 F1 season after a perfect winter
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Barcelona test: Williams fastest but Mercedes out front ahead of new season