Supercars championship leader Scott McLaughlin will have to start Sunday's Sandown 500 from the rear of the grid for a technical breach at last month's Bathurst 1000.
Race officials have penalised McLaughlin and co-driver Alex Premat, in addition to a $30,000 fine for DJR Team Penske, for exceeding "the maximum permitted valve lift" during qualifying and the top 10 shootout at Mount Panorama.
Despite the penalty, McLaughlin is still poised to claim back-to-back championships in Sunday's 500km race, needing merely to finish to take out the title.