The Mercedes AMG Petronas team completed a second day of testing at the Magny-Cours circuit in confident mood, with Sam Bird again at the wheel to run through a series of development evaluations.
With Michael Schumacher 'dropping in' to see for himself how the test was progressing, and to hear Bird's feedback on the team's new exhaust layout, amongst other things, the Briton pushed his two-day mileage total close to 1000km with another 125 laps of the former French Grand Prix venue.
"We've had a second very positive day at the test and successfully completed our planned schedule, including the evaluation of the performance items that we wanted to achieve," Bird reported, having slotted into second spot on the timesheets, "We're happy with the results that we've seen so far and there is a lot of information to go through to hopefully help improve the car.
"It was a great experience to be back behind the wheel of an F1 car this week, and to help with the development programme, and I would like to thank the team for giving me this opportunity."
The Mercedes team has used Pirelli's soft tyre throughout the first two days of the test, but will switch to the hard tyre for the final day of three, when New Zealand's Brendon Hartley, formerly a Red Bull protégé but now one of the Brackley-based team's simulator drivers, takes over behind the wheel.