A single 120 km race was held on Saturday, with drivers required to make a pit stop to change tyres.
Previously, if a formation lap had not been completed, the race would not officially start until the safety car returned to the pit lane.
[4] Michael Caruso entered the event as the championship leader ahead of Jamie Whincup and Shane van Gisbergen.
[6] The cars of Whincup and Chaz Mostert both had precautionary engine changes overnight, ahead of the third and final practice session on Saturday morning, which was 15 minutes in duration.
Winterbottom continued his form from the practice sessions to take pole position with a time of 51.1530, two one-hundredths of a second faster than Lowndes.
Tim Blanchard was the final driver to take his pit stop on lap 32, leaving Van Gisbergen in the lead ahead of Whincup, Lowndes, Davison and Rick Kelly.
Davison passed Lowndes for third on lap 34, while Bright and Slade were taking advantage of their younger tyres to make up positions.
Davison set the fastest lap time during the session, but was given a two-place grid penalty for blocking James Courtney.
Whincup lost multiple positions as he had to wait for Van Gisbergen's car to be serviced before he could complete his own pit stop.
Van Gisbergen emerged in the lead ahead of Winterbottom, Rick Kelly, Lowndes and Mostert, while Whincup had dropped to 13th place.
The safety car was called for the second time on lap 40, when Whincup became stuck in the gravel trap at Turn 4, having run wide following his second pit stop.
Shortly after the safety car period ended, Rick Kelly began suffering from brake problems, which slowly worsened and eventually forced him to retire from the race on lap 57.
[12] Van Gisbergen looked set to take victory until lap 80, when Waters' car, which had returned to the circuit, suffered an engine failure on the run into Turn 4, depositing large amounts of oil onto the track.
[12] The result saw Davison assume the championship lead ahead of Lowndes and Whincup, while Van Gisbergen dropped to seventh place, having led the points standings after Race 4.