Erebus Motorsport boss Barry Ryan has blasted the Supercars' new mixed tyre format, saying it produces "fake racing".
Unexpected winners claimed the final two races of the Sydney Supersprint after drivers were forced to use a mix of hard and soft tyres over the weekend.
"Supercars have done a great job with this whole COVID situation but the tyre allocation this weekend ... I don't think anybody's a fan. It's not real racing," Ryan told Fox Sports' Trackside.
"You shouldn't just be able to get a result because you played the ball or just do something different to everyone else. It's not racing and it's not exciting.
"The crew are down in the dumps about being away as it is, so all of this fake racing is just not good. We've got to get back to real, hard-core racing."
Ryan's Penrite charges Anton De Pasquale and David Reynolds endured an up-and-down weekend.
De Pasquale used both of his sets of soft tyres on Saturday night to finish third, but was well off the pace on Sunday.
Reynolds did not look like contending in the opening two races, but finished off the round with a fourth-place.
Meanwhile, two-time defending champion Scott McLaughlin looked unbeatable under lights on Saturday but slumped to 14th in the last race on Sunday.
Ford's Andre Heimgartner almost pulled off his maiden Supercars victory, finishing second behind unlikely winner Jack Le Brocq - who celebrated his own first triumph.
Heimgartner insists the different tyre format should take nothing away from the drivers' who ended up on the podium.
"I guess it just puts more emphasis on keeping calm and picking when you use (different types of) tyres," Heimgartner told reporters.
"It probably doesn't have that golden glisten to it with me, Le Brocq and (Todd) Hazelwood with McLaughlin and all those guys at the front.
"But we had a better strategy that got us faster in that race and we did a better job, so I don't think it takes anything away from it."