Scott McLaughlin ended Friday's Supercars running in Darwin on top of the times, edging Rick Kelly by 0.04s in second practice.
The fast times book-ended the sessions, Kelly making the most of the Michelin rubber left behind from the Carrera Cup session to bang out a 1m06.199s first time out.
That time proved unbeatable until the final couple of minutes, when McLaughlin took on a set of greens and went for a qualifying simulation.
"We were one of the only ones who got a green gain from what we saw, so that was good," said McLaughlin. "It's P1, which is where we want to be.
"We've got to take [qualifying] as it comes. I think we've got a good balance and a good idea from last year, which is nice. We'll work on it overnight and see where we're at."
There was no late qualifying sim for Practice 1 pacesetter Kelly, who was instead focussed on race runs after his early time.
"We're just trying to focus a bit more on the race runs, to try and make sure that the car is strong from that point of view," he said.
"We did two long race runs, which filled the whole session there. [I'm] keen to debrief on that and work out how to go a bit faster in the bit that counts."
Jamie Whincup was third quickest, his time coming with four minutes to go after his Triple Eight Commodore required a change of front splitter midway through thanks to excessive flexing at Turn 1.
Michael Caruso backed up his Practice 1 pace with the fourth quickest time right at the flag, while Craig Lowndes was another late improver with the fifth quickest time, which knocked Shane van Gisbergen back to sixth.
David Reynolds was seventh quickest, Fabian Coulthard eighth, and Andre Heimgartner and Tim Blanchard rounding out the Top 10.
For the second time today there was no Tickford Racing cars in the Top 10, Cam Waters the best of the team's four cars in 12th. Mark Winterbottom and Chaz Mostert could manage just 17th and 18th respectively, while Richie Stanaway was 20th.
|1||17||Scott McLaughlin||Ford Falcon FG X||1'06.1587|
|2||15||Rick Kelly||Nissan Altima||1'06.1999||0.0412|
|3||1||Jamie Whincup||Holden Commodore ZB||1'06.3219||0.1632|
|4||23||Michael Caruso||Nissan Altima||1'06.3725||0.2138|
|5||888||Craig Lowndes||Holden Commodore ZB||1'06.4716||0.3129|
|6||97||Shane van Gisbergen||Holden Commodore ZB||1'06.4973||0.3386|
|7||9||David Reynolds||Holden Commodore ZB||1'06.5570||0.3983|
|8||12||Fabian Coulthard||Ford Falcon FG X||1'06.5895||0.4308|
|9||7||Andre Heimgartner||Nissan Altima||1'06.6016||0.4429|
|10||21||Tim Blanchard||Holden Commodore ZB||1'06.6064||0.4477|
|11||14||Tim Slade||Holden Commodore ZB||1'06.6442||0.4855|
|12||6||Cameron Waters||Ford Falcon FG X||1'06.6586||0.4999|
|13||99||Anton de Pasquale||Holden Commodore ZB||1'06.7143||0.5556|
|14||25||James Courtney||Holden Commodore ZB||1'06.7208||0.5621|
|15||78||Simona de Silvestro||Nissan Altima||1'06.7316||0.5729|
|16||35||Todd Hazelwood||Ford Falcon FG X||1'06.7541||0.5954|
|17||5||Mark Winterbottom||Ford Falcon FG X||1'06.7941||0.6354|
|18||55||Chaz Mostert||Ford Falcon FG X||1'06.7986||0.6399|
|19||230||Will Davison||Ford Falcon FG X||1'06.8713||0.7126|
|20||56||Richie Stanaway||Ford Falcon FG X||1'06.8785||0.7198|
|21||33||Garth Tander||Holden Commodore ZB||1'06.9118||0.7531|
|22||2||Scott Pye||Holden Commodore ZB||1'06.9609||0.8022|
|23||8||Nick Percat||Holden Commodore ZB||1'07.0490||0.8903|
|24||19||Jack Le Brocq||Holden Commodore ZB||1'07.0732||0.9145|
|25||400||Lee Holdsworth||Holden Commodore ZB||1'07.3474||1.1887|
|26||34||James Golding||Holden Commodore ZB||1'07.4138||1.2551|
|27||4||Macauley Jones||Holden Commodore ZB||1'07.5537||1.3950|