Pascal Wehrlein clocked up a total of 286 laps during Pirelli's three-day 2017 tyre test this week at the Paul Ricard Circuit in France, driving a modified Mercedes to simulate next year's downforce levels.
Pirelli has been granted a number of test days to help it cope with the increased downforce levels the 2017 cars will produce.
Ferrari and Red Bull have already conducted tests, whilst Mercedes got their first taste this week in tandem with Ferrari which completed its second two-day test at the Montmelo circuit on Tuesday and Wednesday with Sebastian Vettel clocking up 267 laps.
"Wehrlein completed the entire planned programme, which took in 63 laps today, added to the total of 134 laps on Tuesday and 89 laps yesterday," confirmed Pirelli.
The 2017 tyre test programme will continue in two weeks time at Paul Ricard Circuit, again with Mercedes on wet tyres rather than slicks.