Rosberg remains cautious over tyre wear
28 June 2013 – Mercedes driver Nico Rosberg says there is still a "question mark" over his team's ability to manage tyre degradation after the opening day of practice at Silverstone, with the German wary of the predicted rise in temperature as the weekend progresses.
Having topped the timesheets during the much drier second session, Rosberg is confident that the outfit will be able to deliver another strong qualifying performance, but is not willing to make long-run predictions until the track conditions settle.
"It was a pity for the fans that we didn't do much running this morning so it was good for them and for us that it was dry this afternoon," said Rosberg. "On one lap the car is still quick, so qualifying should be okay. But the question mark is our race speed.
"We practised the race speed today and it felt decent so far. But it could be a completely different picture on Sunday as the weather should be a lot warmer, so we don't know where we are right now compared to the others. I'm still quite confident that we can have a good weekend in front of our fans, our colleagues and their families."
Team-mate Lewis Hamilton ended the day fifth fastest, 0.663 seconds adrift.