Australia Friday quotes: Williams

Nico Rosberg - 8th: "It was a pretty interesting session this afternoon. We really progressed very well after a slow start, but took our time and made good improvements, which is great.

"We eventually found some good set-up direction despite making some quite big changes. Like everybody else, we were trying tyres and with all the weather changes, the situation was not entirely clear and making our tyre choices will not be the easiest decision."

Kazuki Nakajima: "At the start the track was really wet, so it was a little bit difficult out there for me. We started with the extreme wet tyre for the first 15 laps or so, but I didn't really get the opportunity to set a good lap time. Generally the car was pretty good whether it was wet or dry.

"Finally in the dry conditions late in the session everything was right to set a good lap time and in fact, I had some traffic in the last lap, so I might have been able to go even quicker. I didn't start out today expecting too much in my first official practice, but I was pleased with how it went."

Sam Michael, Technical Director: "It was a busy pair of sessions today affected by the variable weather, but we collected plenty of information for tomorrow and Sunday. All three drivers did a good job and worked away on the set-up and we have found some good direction with the car, particularly in the second session.

"We've got more work to do tonight, but it was a reasonable first day. We had no systems problems with the cars."