The minnow outfit ran steadily throughout the weekend aboard their wildcard entry, which was put together with the help of Garry Rogers Motorsport.
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“The boys I thought drove unbelievably well – when you look at our sector times we didn't have a lot of track position but we actually had sector times that were matching people.
“The boys were driving with the kind of thought ‘drive to survive', trying not to do a thing wrong, just make it work, and they did.
“But when they were getting pressured from other cars and everything else, they stepped it up and made it happen. I'm the proudest father in the world.”
Aaren and Drew, the former currently 13th in the Dunlop Series and the latter having stepped down from the second tier due to financial constraints in 2013, echoed their father's sentiments.
“We're such a small team with nowhere near the budgets of anyone up and down pit lane so to finish on the lead lap is such a proud moment for everybody,” said Aaren.
“To finish on the lead lap is massive,” added Drew. “It's pretty much like a win for us.
“I don't think there's a scratch on the car, so that's a positive thing for us, I don't think it could have ended any better.”
There were concerns for the entry when the Plus Fitness car began to blow smoke with just over 30 laps remaining, which turned out to be the result of the Commodore being over-filled with oil at a pit stop.
Wayne hopes that the achievement will lead to bigger and better things for his sons, who have been continually overlooked for co-drives in the Pirtek Enduro Cup.
“We've done this this weekend to try and fly the flag for the boys,” he said.
“Everyone told us they'd get co-drives if they did a Bathurst – we've now done Bathurst, gives the boys a break.”
Aaren now sets his sights on the final round of the Dunlop Series at Sydney Olympic Park from 4 to 6 December.