The 100 per cent winning streak continued for the Camaro across the weekend with Chevs filling the eight of the nine podium spots on offer across the three races.
Even more troubling was that the top nine cars in race 2 were Camaros while the brand was first across the line in the top five positions in race 3.
The only sign of hope for Ford was a pole and a fast start to race 1 for Cam Waters, whose race was then ruined by a spectacular engine fire.
That happened five laps into the race, which means it's impossible to know if his Mustang would have looked after its rear tyres well enough to win.
Rear tyre life has been the primary issue for the Mustangs compared to the Camaros, with much of the recent focus on engine and drivability.
However the Darwin whitewash has added to concerns that this isn't just an engine issue, and that there is still disparity in terms of aero or aero balance.
"It's not drivability," Waters told Autosport when asked his take on the parity issue.
"We've made improvements on the drivability front and obviously the engines aren't the same when you've got different gear cuts going on. It's more than just the engine.
"I guess all year, and even in the early testing, you could see [the Camaros] have got more rear [grip] and a bigger margin to work in.
"We're struggling. You see it in qualifying; some guys are up the front then down the back, they're not very consistent. And that's not just drivers making mistakes."
Source: Autosport