Red Bull Ampol Racing driver Shane van Gisbergen will start Race 27 at Sydney Motorsport Park from eighth after copping a three-place grid penalty for impeding.
An incident in Qualifying for Race 27 at the BP Ultimate Sydney SuperSprint saw van Gisbergen baulk Truck Assist Racing’s Jack Le Brocq at Turn 4.
Van Gisbergen would qualify fifth initially, though a three-place grid penalty will drop him to eighth.
That will promote Irwin Racing’s Mark Winterbottom to fifth, Mobil 1 Appliances Online Racing’s Chaz Mostert to sixth, and DeWalt Racing’s Scott Pye to seventh.
Le Brocq, meanwhile, will still start 11th for the penultimate 32-lapper of the weekend.
“Firstly, I stuffed up,” said van Gisbergen.
“We all did our runs. You normally only get one lap here and I saw all the Tickford cars were behind us in a line across the line.
“I just assumed they weren’t on a second lap, so my mistake.
“I went straight down to Jack and apologised and asked him if he was on a lap, which he said he was. I’m gutted for him, but not much I can do.
Asked if the penalty changed his strategy, van Gisbergen said his approach to pit stops will likely be tweaked.
“We’ve got to pass a few more cars and come up with something,” he added.
“We’ll probably take three tyres, we’ve got them available, but we could take four [tyres] if we’re up for a result. We’ll see.”
Anton De Pasquale of the Shell V-Power Racing Team will start Race 27 from pole position.
Race 27 gets underway at 13:50 local time/AEDT.