MW Motorsport team-mates in 2018, Dean Fiore and Alex Rullo say they're unsure whether they'll be on the grid when the new Dunlop Super2 Series starts in Adelaide next week.
The West Australians are yet to lock in plans for the 2019 season, after Rullo finished fourth and Fiore seventh in the '18 Super2 standings.
Matthew White's operation has filled its three Nissans with an all-new roster of drivers, while the bulk of the rest of an expected 20-car field in Adelaide is set.
Two seats are unaccounted for at Eggleston Motorsport, alongside Will Brown, while Matt Stone Racing also has a Commodore to fill.
Fiore tested an Eggleston Commodore at Winton last week and is in discussions with the team, but says he is "not in a position" to commit to a full-time campaign.
"I'd love to do it because I love racing, but I've got a lot of stuff I need to focus on back here [in Perth], there's plenty on," Fiore, last October's Bathurst 250 winner, told Supercars.com of racing Super2.
"The main focus is obviously trying to get an endurance drive again for this year.
"The theory behind trying to do the first two rounds is just to try and build some momentum, the second one being at home in Perth, it would be good to race at home.
"Then [it'd be] just trying to create something out of racing the first two rounds, given there's only two rounds in the first six months of the calendar year.
"It's all very heavily geared around the back end of the season, so I'm just trying to get something together for the first two.
"There's no commitment beyond that if we were to land on the grid at Adelaide, it would literally just be for Adelaide and possibly Perth."