Whincup was excited about getting the race win more than the all-time record.
"It felt good. The car was good - I got a good start," he said.
"Thanks to my teammate - we look after each other here at Red Bull - he let me through.
"I'm not getting too excited with the numbers but happy to get the win today."
Coulthard, who had been sick across the weekend, backed up his Saturday win with a valuable second place to improve his championship standings.
"I had a good battle with Shane - he had a good car and mine was better in others and I had a little more tyre left," Coulthard said.
Despite giving up the lead van Gisbergen was happy with how his race played out.
"It was pretty awesome. I let Jamie go because he was much quicker," he said. "Then Scotty and all the boys caught and I definitely wasn't letting Scotty go.
"I was just slowing up every corner to get a good exit so they couldn't get me at the next one."
The series moves switches to endurance mode with the first of three events next month at Sandown Raceway in Melbourne.
Championship Standings
Scott McLaughlin 2058 points
Jamie Whincup -12
Fabian Coulthard -107
Shane van Gisbergen -258
Chaz Mostert - 264