Rosberg quickest on first daypublished at 14:48 British Summer Time 1 July 2016
So, the two Mercedes are top of the charts for a change.
But the weather suggests we might have an unpredictable weekend, with tyre tactics important.
Join us again tomorrow morning at 09:30 BST for build-up to third practice and then qualifying.
In the mean time, read Andrew Benson's report on today's shenanigans.