But it all came together for the New Zealand gun on Thursday, clocking the fastest lap time of 1min: 55.67sec ahead of teammate Jason Bright (1:56.02) and fellow Kiwi van Gisbergen (1:56.04).
Series leader Craig Lowndes (1:56.20) was fourth quickest ahead of Holden teammate and four-time series champion Jamie Whincup (1:56.42).
However, Whincup was a winner before the V8s hit the Melbourne track.
An out-of-court settlement with a former sponsor has ensured it is business as usual for the Holden star.
There had been friction building between Whincup and his champion Triple Eight team over a long-running clash in energy drink sponsors.
Whincup had renewed his personal deal with Monster Energy, only for Triple Eight to earn powerhouse Red Bull's backing ahead of the 2013 V8 Supercars season.
Whincup tried to opt out of the personal sponsorship deal, prompting Monster Energy to launch legal action against the V8 poster boy late last year.
However, months of angst finally came to an end with an out-of-court settlement on race eve ahead of the V8 Supercars action at the Australian Grand Prix in Melbourne.
The dispute had been thrashed out in a NSW Supreme Court hearing since Monday.
Monster Energy reportedly did not seek damages.
The resolution leaves Whincup free to continue his V8 campaign under the Red Bull banner.
Whincup looked like a relieved man on Thursday, clocking the fastest practice time (one minute 56.66 seconds) ahead of Ford rival Mark Winterbottom (1:56.81).
But in qualifying Winterbottom's tune had changed after managing only the 10th quickest time after suffering steering damage, adding to his frustrating season start.
Nissan again showed promising signs with Michael Caruso (12th fastest) and Todd Kelly (13th) just outside the top 10.
The first of Friday's two 30-minute V8 races start at 11am AEDT.
A practice penalty ensured Bright was later banished from second to fourth on the starting grid for the opening race.
It ensured an all Kiwi front row of Coulthard and van Gisbergen.
- AAP