Peter Brock fitted only 173 Holden vehicles with an energy polariser, a special device which allegedly aligned molecules and energy fields to improve the cars performance and handling.
George Town's Brian Hennessy has one of the 1986 VL Group A car's with the plus pack, a small polarising device thought up by Brock that allegedly contains crystals and magnets in an epoxy resin for a better performing vehicle.
The energy polariser idea briefly cost Brock his association with Holden in February 1987, the company created Holden Special Vehicles instead, after he went ahead and fitted the vehicles with the industry's dubbed pseudoscience device.
Mr Hennessy's red 1986 VL model, along with his black 1980 VC Holden commodore will be on show along with hundreds of others on Sunday at the Monaro and GM Club of Tasmania's bi-annual car show.
Windsor Park will be full of Holden and General Motors cars at the event, and a special Brock tribute display section to honour the 40th anniversary of his 1979 Bathurst win by six laps.
"It's a record no one will ever, ever beat...and it was strange I was actually there that year, I was on the mountain that year when he won," he said.
"I don't know what's changed in people's live but lots of people want to have an old car and just go out and meet people now, it's just become a way of life for people.
"We ran the Monaro National's this time last year and that was huge, so sort of hoping to get something like that again."
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Brock, known as the King of the Mountain, won the Bathurst 500 a record setting nine times between 1972 and 1987.
Both models have won the race, and Mr Hennessy has had the VC model since 2002, only having the interior and the wheels restored.
The VL model has been fully restored, with everything original except for the paint and he has owned it for about 10 years.
The event from 10am to 2pm in Windsor Park is $5 for general entry, with young people under 16 free and it's $5 per display car.
Mr Hennessy said a lot of young people had been popping up at car shows in recent times checking out the vehicles their fathers or grandfathers may have had.
He said some of the money raised from the event would go to charities in the community, with a raffle on the day to help fundraising efforts.
"There's a friend of ours trying to start a brain cancer support group, because one of the guys in our club died of brain cancer a couple of years ago," he said.
"I guess when she was going through that she found out there was no support for those people, so she's wanting to do that."
We're raising funds for four Tasmanian charities as part of our Empty Stocking Appeal. Can you help?