Holden workers at Fishermans Bend are still largely unaware of reports that car maker Holden may have decided to close in Australia, regardless of any additional assistance offered by the government.

While most employees were still absorbing the news on Friday morning, some were familiar with the rumours circulating around Holden's fate.

One man told Fairfax Media on Friday morning that "as far as I know, the decision hasn't been made".

"Personally, I will be OK; I'm just worried about everyone else when the decision is made," he said.

Another employee said that in a meeting with the union, Holden explained its submission to the productivity commission, and told workers the reasons behind "why the company should remain here in Australia, and why we are asking for more funding".

He told Fairfax Media that "when the new government came in, we'd hoped that [an answer] would happen a lot quicker".

"I'm not really that worried though, because even if it is 2016, you get a close date and can plan what happens next," he said.

Others, however, were surprised to hear of the reports, or said they had just heard the news on the radio on Friday morning.

"I just know what I hear in the news," one man said.

"But it's been going on for ages ... so I'm not that surprised."

A woman said she had just heard news of the reports while driving to work, and said "that if there's a possibility you'd lose your job, of course you'd be worried".

Holden spokeswoman Kate Lonsdale said the company did not respond to speculation.

"Our discussions with the government are continuing," she said.