The Safety Car has been deployed for the first time in the 2021 Repco Bathurst 1000 following a Thomas Randle mistake.
Driving the #44 Boost Mobile Mustang, Randle ran wide at Hell Corner and went nose-first into the tyre barriers at the start of Lap 17.
That triggered a flurry of action in the pits, with several teams opting to double-stack their cars.
Eventually Randle, who will step up to a full-time Supercars Championship programme with Tickford Racing next year, was helped out of the gravel trap and limped back to the lane.
There, Tickford Racing serviced the car and completed a driver change, with James Courtney now behind the wheel and running a lap down in 24th.
Just one car is currently out of the race, with steering problems plaguing the Team 18 car of Scott Pye/James Golding.