Nico Rosberg now has put 147 laps on the Mercedes AMG F1 W04 which converts to 503 kms.
Nico Rosberg completed his fourth day of pre-season testing this afternoon at Barcelona's Circuit de Catalunya, running a total of 108 laps in cold but dry conditions. His pre-season mileage now stands at 1471 km.
Lewis Hamilton will complete the fourth and final day of this week's test programme tomorrow.
Nico Rosberg We didn't have a perfect morning and it was tough out there with the low temperatures. They were causing a lot of tyre graining, which made it difficult to do much useful testing. It was a few degrees warmer after the break and that gave a completely different picture. In general, I'm pleased with what we've achieved this week - I did a lot of mileage and the team has done a good job over the winter. I feel more comfortable in the car and the balance is quite good, but we still need to work in a number of areas. That's why I'm looking forward to testing next week and to see what progress we can make.
Thursday 21 February
Track Circuit de Catalunya
Driver Nico Rosberg
No of Laps 108 laps
Best Lap Time 1:22.611
Kilometres Covered 503 kms
Track Length 4.655 kms
Weather Dry, cold and overcast