“Bit bummed, I wish I had a tenth-and-a-half up my sleeve out there, but the track changes so quick around here.”
The last time Mostert started from second on the grid, he won the race, the 2014 Bathurst winner forcing his way past Cameron Waters in the Symmons Plains finale.
However, with the slippery conditions set to linger for the race, and with Heimgartner confident with his car on wet and dry, Mostert believes the 24-lapper will be a far greater challenge than the last time he rolled out in Tasmania.
“You see the rain on the windscreen, but you don’t really see what it does to the track condition,” Mostert said.
“You send it into the corner the same you did as the last lap, and you’re nearly off.
“If the weather stays around this arvo, it’s going to be a pretty hard race.”
Shane van Gisbergen and Jamie Whincup will launch from eighth and ninth respectively, handing Mostert an early weekend chance to eat into the Red Bull Ampol duo’s points deficits.
WATCH: SLIPPING AND SLIDING AT THE BEND
However, Mostert remained coy on the championship chatter, instead reiterating how perilous the race could prove to be at the tricky Tailem Bend venue.
“We’ve still got a job to do,” he said.
“It’s going to be a super hard race, it’s super easy to make mistakes out there.
“I think the guy that will win the race today, if it is a bit wet, will be the guy who makes the least amount of mistakes.”