Jenson Button concluded the 12 days’ running with a productive 122 laps of the Circuit de Catalunya today.
At the conclusion of the test, sporting director Sam Michael said: “After completing over 5,000 kilometres, through dry and wet conditions, we have collected plenty of data from MP4-28A.
“A special thank-you to everybody put so much effort into the testing program. We’re all really looking forward to the first race in Melbourne in two weeks – from the laptimes we’ve seen the season is going to be incredibly close!”
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