"There's a big gap to close from Mercedes and Ferrari".
Mercedes struggled to find a suitable vehicle balance in the opening week and while the team's fortunes appeared to improve with a raft of aerodynamic updates introduced for week two, Hamilton suggested that the gap to Ferrari was "potentially half a second" after the final day of pre-season testing.
Horner was particularly impressed with Mercedes' pace in the afternoon session.
"I think it was quite clear, however it's hard to know what everyone's doing, so naturally we won't fully know until we get out in the auto tomorrow and, come qualifying you get a better picture". We've got lots of work to do and for sure we'll analyse a lot.
The one I'm really interested in is Red Bull.
"The auto will be fresher here [in Australia]", Hamilton said of his W10 Mercedes in spite of the lack of updates post-testing.
"We for sure have some things to improve, but I think everyone has", said Verstappen.
Verstappen said: "If we look at our longer runs from testing, our performance seems pretty promising and we hope to be competitive from the beginning of the year". "It's the first day - you start here". So, everyone takes a step after testing.