McLaren Racing Director Eric Boullier believes that the outfit can still make progress, as it did not run its full 2016 specification during pre-season testing at the Circuit de Barcelona-Catalunya.
Having been beset by reliability issues during the build-up to an ultimately dismal 2015 campaign, McLaren and Honda enjoyed a smoother preparation period this year, though did not trouble the leading times across eight days of running.
However, the outfit was regularly in the mix and achieved encouraging mileage, leading Boullier to believe that more performance is possible when further updates are introduced at the season-opening Australian Grand Prix.
"We haven’t run the full 2016 specification yet during the tests, so it means we’ll go to Australia with more new parts on the car," he said.
"But we’ve been able to do good mileage on most of the days, which is very good news, and in terms of the chassis it was important that we could go through all of the systems checks – something we couldn’t do last year – so it’s a good achievement.
"We seem to have a pretty reliable car now to start the season, so we are definitely more confident in that sense, too. The base package looks okay, but there should be more performance coming in the next few weeks.
"Overall, we’ve ticked a lot of boxes on our test programme checklist, so from that point of view I’m satisfied with the work we’ve completed.
"Of course, it never feels enough – we could test all day every day and still want to do more – but we’ve definitely made a good start."