Team owner Charlie Schwerkolt has now confirmed that the livery will remain for the Great Race.
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A replica of the car is also on exhibit at the National Motor Racing Museum at Mount Panorama.
“We are excited to have our retro livery on for its second race, and will be having a photo shoot with the original 1968 winning Monaro celebrating the 50th anniversary of Holden's first ever win at Bathurst,” said Schwerkolt.
He also noted that the team has taken steps to ensure that it can be a finisher in this year's Bathurst 1000.
Car #18 completed only two laps in 2016 due to a rocker failure and 76 last year due to an engine sensor failure.
“Hopefully it's third time lucky for Team 18,” commented Schwerkolt.
“We unfortunately had freak engine failures in both 2016 and 2017, so with the freshest brand new engine we could source our goal this year is to firstly finish, and then hopefully make it in the top 10 or even better.
“With a great line-up of drivers and a fantastic team, we are in with a real chance, and I am super excited.”
Lee Holdsworth and Jason Bright finished 23rd at Sandown after the latter ran off and beached the car late in his driving stints.
Theirs won't be the only car sporting retro colours with Tickford Racing's #5 Falcon wearing Cobra stripes to publicise a new Mustang road car upgrade package.