"It'll be non-stop action ... you'll hardly have time to go the toilet."

The inaugural three-day event has been in the works for more than a year, but very nearly didn't go ahead.

Bringing the TCR Australia Series to Tasmania for the first time along with Trans Am, S5000 and Touring Car Masters categories, Race Tasmania looked on thin ice when New South Wales' COVID cases spiked last month.

But Rogers and his father Garry pressed on to bring Symmons Plains its biggest motorsport event in nearly two years.

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"There was a time there where we thought 'do we press on with this, is it too risky, will we spend a lot of money and it not happen?'," Rogers said.

"I'm proud of my Dad that we've stuck with this to do it - it would have been easy to cancel the event around Christmas time when the mainland opened up a bit to COVID.

"But we stuck fat, had a lot of faith in the Tasmanian government and now we're only a few days out and the event is happening which I feel really proud about and I'll feel really proud on Australia day when the cars are all roaring around too."

Garry Rogers Motorsport competed in the Supercars Championship for more than 20 years before withdrawing at the end of 2019.

The team has since turned its focus to, among other things, the TCR Australia Series, with Dylan O'Keefe flying the flag in a Renault Megane RS.

Rogers junior said the inaugural Race Tasmania, which will run from Sunday to Tuesday, had been a result of a mutual love for motorsport fans in the Apple Isle.

"Dad and I frequent Tasmania quite regularly. Dad has some business interests down in Hobart and the Rogers family originally came from Tasmania, Dad's parents were born down there and we've got a real affinity down there," he said.

"What motivated us to put this event together was whenever we came to Tasmania ... and raced in our Supercars, the enthusiasm of the Tasmanian motorsport public is second to none in Australia," Rogers said.

"Normally we're down there racing in winter - not when the weather is at its best - but the weather in Tasmania in summer is some of the best weather in Australia.

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"And to race on a Monday and a Tuesday, we've never done that in our sport before - Monday being Australia Day eve and Tuesday being Australia Day it's a special time to race.

"So we're very pleased to reward Tasmanians with this event because we feel really touched by the way they do support their motorsport."

Practice gets under way on Sunday with qualifying and race 1 to follow from 10am on Monday.

The Australia Day schedule starts at 9am with all seven categories holding two races.

Crowd restrictions are in place for the event, with spectators encouraged to get their tickets in advance at ticketmaster.com.au