Erebus driver Will Davison has refused to attend a photoshoot with James Courtney after the two clashed on and off-track in Tasmania last month.
Contact between Courtney and Davison at the last event at Symmons Plains was analysed by the Stewards, and despite Erebus protesting the initial decision, no penalty was handed down for the racing incident.
While Davison has said he put the exchange behind him, he refused to participate in a surprise photoshoot with Courtney orchestrated by The Daily Telegraph ahead of this weekend's Perth SuperSprint.
While Davison would not comment on the growing rivalry, Courtney seemed more than happy to add fuel to the fire.
"He is obviously still upset,'' Courtney told The Daily Telegraph.
"We are never going to be best mates. We are rivals. It has been a long time since the last race and I would think it should be water under the bridge by now but he obviously is still having a sook.''
Courtney had no issues participating in the stunt once he was told the plan was to photograph both drivers together, but said he wouldn't be saying sorry to Davison anytime soon.
"I am not too worried about what Will thinks of me or what he is doing," Courtney, who sits second in the Championship, said.
"I have nothing to apologise for and I won't be apologising.
"They [the Stewards] ruled twice in my favour and in the end I don't have to apologise. It was deemed to be not my fault. I am not here to be his mate. I would apologise to my teammate but for everyone else it is racing.''
Davison was clearly incensed by Courtney's cheeky response to his emotional outburst in the HRT garage, as the #22 smiled and shrugged off the incident Davison believed to have cost him a podium finish - which would have been his first since Townsville (July) last year.
"I was just trying to rev him up a bit more,'' Courtney said.
"It worked. I don't know what his problem is. We have known each other a long time. I don't know if he is upset about the way his year is going and the fact that this place (HRT) is all coming around. It could be a number of things."