Prodrive's Chaz Mostert and Mark Winterbottom share the V8 Supercars honours at Barbagallo Raceway as the Ford pairing dominate qualifying ahead of today's two races.

It was Mostert who got the ball rolling for the Pepsi Max Ford crew in the day's first of two qualifying sessions after last year's Bathurst 1000 winner translated his promising practice form into his first pole-position of the 2015 campaign.

Winterbottom came close to ousting his younger team mate in the first session but Mostert's 57.0403 could not be beaten.

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Red Bull's Craig Lowndes - hunting a 100th career V8 Supercars victory this weekend - also threatened to dismantle the PRA front row but had to settle for the second row ahead of Holden's Garth Tander in fourth.

Tekno Autosport's Shane Van Gisbergen and HRT's James Courtney both placed their Commodores into contention onto the third row of the grid while David Reynolds maintained his good run of form in The Bottle-O Falcon FG X in seventh.

That left Erebus' Will Davidson in the middle of a Holden sandwich in eighth position as the E63 driver, along with Jason Bright and Tim Slade completed the race one's top-ten starting positions.

Notably, Red Bull's Jamie Whincup endured a terrible first session as the defending champion could fare no better than 21st position.

As in first qualifying it was another Ford FG X on pole-position for the second encounter but this time Mostert had to give way to his Pepsi Max Crew team mate Winterbottom.

Winterbottom upped the pace in the second session as he and Whincup - atoning for his earlier qualifying woes - both went under the 57 second barrier around the 2.4 kilometre circuit.

Freightliner Racing's Fabian Coulthard was unable to match the front-row pace but still managed to get the better of Triple Eight's Lowndes in the dying seconds of the running.

Despite lighting up the timing screens in the first two sectors on his final effort, Mostert failed to improve on his previous best and stayed in fifth as a result. He's joined on the third row alongside the HRT Commodore of Courtney in sixth.

Reynolds, Davidson and Slade all repeated their first qualifying positions in seventh, eighth and tenth while Rick Kelly carried the flag for Nissan in ninth.