Supercars had been placed in a bit of a tough spot the past several years with guys like Whincup and Craig Lowndes retiring, then Scotty and SVG leaving for America, all leading to a pretty big vacuum of star power. The automotive industry in Australia has also been in steep decline for a bit as both Ford and GM quit production/manufacturing efforts there within the past ten years, and GM shuttered the Holden brand and withdrew factory support from the series entirely (GM now lease the Camaro IP to Supercars despite the car having only been sold there from 2018-2020). The Holden/Ford rivalry (red vs. blue) was at the heart of the championship going back many decades (the Falcon and Commodore models in particular), so that was another massive loss for the sport.
With all that in mind, this isn’t much more than a desperate attempt to inject some new life into the series. I’m not sure that’ll be the preferred method by the end of it. If you ask a lot of remaining fans they’d say there are a number of other items that would’ve liked to see addressed first. The rollout of the Gen3 car was botched in a big way last year, and while the parity has gotten quite a bit tighter this season, that was still the last straw for a lot of people. Add in a whole bunch of other miscellany like hard tires, fuel drops, gag orders on drivers (ask SVG about that one), not enough rounds on the calendar, and so on, and I don’t think this was anywhere near anyone’s radar to enhance the sport.
They did announce a few weeks ago they’ve gotten Toyota to join with the Supra in 2026, and with Toyota’s track record of success and investment in the series they compete in I think that’ll ultimately go further towards solidifying Supercars as a going concern than any type of championship format.