Mercedes reserve driver Pascal Wehrlein was fastest on the final day of post-season testing in Abu Dhabi.
The 20-year-old was quickest in the morning, setting a benchmark time of 1:44.557 at the wheel of the championship winning W05 Hybrid, before setting the fastest lap of the entire test late on, posting a 1:42.624 to end the day on top.
McLaren suffered another challenging day of testing at the Yas Marina Circuit, with its interim Honda-powered car spending most of the day confined to the garage due to a fresh electrical problem.
Stoffel Vandoorne ventured out on track late on, but completed just a single lap before the MP4-29H grinned to a halt.
Raffaele Marciello made his F1 testing debut with Ferrari and ended the day second fastest, six tenths shy of Wehrlein.
Max Verstappen, who crashed on Tuesday after a suspension failure, was third for Toro Rosso, ahead of Sauber’s Marcus Ericsson, who completed 112 laps – the most of any driver on the day.
Will Stevens ended the day fifth for Caterham, despite missing the final 40 minutes of running following a fuel leak, while Formula 3 racer Spike Goddard, who tested the ‘Info Wing’ system in the morning, was sixth for Force India.
Daniel Ricciardo rounded out his maiden season with Red Bull in seventh, ahead of 2015 Sauber driver Felipe Nasr, who completed 82 laps despite an early failure on his final test with Williams.
Newly crowned GP3 champion Alex Lynn and European Formula 3 champion Esteban Ocon shared the Lotus, the pair rounding out the top ten.
Image courtesy of Daimler