Fernando Alonso was happy with his Friday running in Melbourne as 29 laps in his MP4-30 yielded "no issues and that's a good start and a good sign."
Unlike last season when McLaren struggled to get any mileage under their belt, this year they put in a solid showing in the pre-season and that continued into Melbourne on Friday.
Alonso racked up 29 laps to go with Jenson Button's 29 while his 1:39.895 put him sixth on the timesheets, one place ahead of his British team-mate.
"Tomorrow everything will be different because we're expecting a dry track and no wind, so conditions will be completely different," he told ESPN.
"Today things went well so we can enjoy the moment.
"Tomorrow in free practice we still have a few things to try because today we didn't have the dry conditions we needed to try them – brakes, ride heights and others – but today the car had no issues and that's a good start and a good sign.
"Today was a positive day but tomorrow, when it will be dry, we won't be as well placed in the time sheets as we were today. But so far things have gone better than expected."
The double World Champion admitted that Friday's trouble-free day was a pleasant surprise for all at McLaren.
He added: "I'm happy to be back in the car, in a different track and finally at the moment of the truth.
"You can be for days in Barcelona running with the same set-up and everything is perfect and then get to another track and get a surprise. For us the surprise was a positive one so I'm happy with that."