Mercedes has tested the Pirelli's wider tyres which are being developed for next season. Mercedes tested with a modified 2015 car at Paul Ricard race track.
Pascal Wehrlein was behind the wheel of modified 2015 car, which simulates increased downforce due to wider front and rear wings in 2017, the test will continue for three days at the Paul Ricard Circuit in France.
Kimi Raikkonen also had tested the wider tyres in a modified 2015 Ferrari, in a separate test at Barcelona, Spain. With these tests Pirelli's tyre development is expected to pick-up pace, as it all started in early August.
Pirelli Motorsport Director, Paul Hembery said that the testing is still in early phase. Due to the wider tyres, the 2017 cars are expected to go four seconds per lap quicker. Although we cannot expect such timings during tests.
Compared to the tests conducted in August, the cars are modified to replicate the exact downforce achieved by the 2017 spec Formula One car. Pirelli is hopeful in getting more data out of these tests.
Sebastian Vettel will be taking over the wheel from Raikkonen on Wednesday and Wehrlein will continue testing the Mercedes car for the next two days.