5 Observations from the Final Day of Formula 1 Preseason Testing in Barcelona

The final Formula One preseason test ended on Sunday afternoon in Barcelona, Spain. With just two weeks until the first grand prix of the season, the teams will now return to their factories for some last-minute adjustments based on the information gleaned over the previous four days at the Circuit de Catalunya. Williams' Valtteri Bottas set the pace on the final day of testing, although his best time of one minute, 23.063 seconds was slightly slower than the fastest times clocked by Mercedes over the last two days. But aside from the time sheets, there was a lot happening as winter testing wrapped up, from Ferrari's act of protest to McLaren's ongoing struggles. Here are the five stories that caught our attention on Sunday.Begin Slideshow...

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