F1 Test, Barcelona, Circuit de Catalunya Contrary to Thursday's windy and wet conditions, Friday proved to be wonderful for testing, with ideal conditions greeting the teams as they headed into the final day of running before heading to Melbourne. Kimi Raikkonen was the first man out on track today, soon followed by Russell for Williams and Grosjean for Haas. Perez and Hamilton joined a minute later, and interestingly were spotted with smoke coming out of their Mercedes power units when accellerating out of Turn 5. Perez returned to the pits, but Hamilton continued for another lap, indicating it wasn't too much of a worry. 5 minutes later, another big puff was seen on Hamilton's W11...
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