"I think the battle between Shell V-Power Racing and Red Bull is fantastic and I am glad to be a part of it," McLaughlin said.
"I always have great battles with Jamie. Obviously last year was amazing but it is always sweet when you get on top."
Whincup conceded his rivals had the better package on the day.
"I gave it everything I had," Whincup said. "Scotty had a good start and I went around the outside but at the end of the day those guys did a better job. They have a very fast race car and Scotty did a good job.
"We'll work harder next time."
Rick Kelly wound back the clock to finish third and celebrate his 500th career race with a podium finish in what will be a confidence-boosting result for the factory-backed Nissan outfit.
Kiwi Shane van Gisbergen produced a gutsy drive to hold on for fourth but had to battle almost the entire race without power-steering on a circuit notoriously for its high speed corners.
McLaughlin's Shell V-Power teammate Fabian Coulthard was disqualified from qualifying with a technical infringement and was relegated from the front row to the back of the field. He recovered to finish in 13th place.
Fellow Kiwis Andre Heimgartner and Richie Stanaway finished 15th and 19th respectively.
A second race awaits drivers on Sunday.