Mostert reveals favourite performance of championship season

Chaz Mostert had labelled his critical charge from 12th to second as his best drive of 2025.

The new Repco Supercars Champion won four races this season, in New Zealand, Gold Coast and Sandown.

However, the Walkinshaw Andretti United star revealed his most significant personal performance came when the chips were down on the penultimate day in Adelaide.

An electrical issue in qualifying left Mostert fuming in the car, with the #25 Mobil 1 Optus Ford consigned to the sixth row. In contrast, title rival Broc Feeney qualified on pole for the 18th time.

With the pressure on, Mostert carved through the field and sat third on the final lap, which became second as teammate Ryan Wood side-stepped at the last corner.

Having faced a big deficit pre-race, Mostert was just 23 points behind Feeney heading into the last day. With Feeney having a shocker on Sunday, Mostert was crowned champion, an outcome arguably set up by his Saturday heroics.

Speaking on on The Formation Lap, the two-time Bathurst winner explained that the emotions of Sunday overshadowed his stunning drive 24 hours earlier.

"It would have to be probably Saturday at Adelaide," Mostert said.

"I think it's one that's probably been a little bit overshadowed just because everyone focused so much on the final race and everything that went down there.

"We made it really tough for ourselves, especially myself in qualifying, making a couple of mistakes there and starting 12th.

"The risk of starting 12th, when you've got everything on the line, is huge. Anything can happen in the opening laps."

In the first stint, Mostert collided with Thomas Randle, before belting the Senna Chicane tyre bundle to a point that Supercars officials warned WAU that the front bumper could come off at any minute.

All told, Mostert brought his battered and bruised Mustang home, and was able to go to bed on Saturday dreaming of title glory.

"Definitely tried to make it pretty hard for myself trying to drive through the tyre bundle about 38 times," he joked.

"Pretty much hit everything but the pace car. But the resilience to chae throughout the race, the way the car still held together and the performance it had at the end, to get back into a podium position with starting that far down was something I'm probably really proud about.

"It's probably the one I'd probably prefer to watch other than Sunday's race, just because you just never give up and it's always been our mentality at Walkinshaw Andretti United.

"And even though it was so easy to get down in the dumps, we went into that race feeling really positive and got the positive outcome in the end."