Yesterday it was revealed the next-generation touring car would test at Queensland Raceway tomorrow with Broc Feeney steering the Triple Eight Race Engineering-built prototype.
However, less than 24 hours after that news broke, Supercars has confirmed the test will instead take place next week.
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The car will then be sent from Queensland to New South Wales for the season-ending Repco Bathurst 1000 across November 30-December 5.
The Gen3 Mustang hit the track last week at Queensland Raceway, with Shell V-Power Racing Team co-driver Alex Davison behind the wheel.
“Following on from the successful Mustang test last week, the Gen3 steering committee agreed there were some alternate factors we wanted to focus on in the Camaro test, which require time to prepare,” said a Supercars spokesperson.
The rescheduling all but rules out Feeney from conducting the first test.
Feeney will travel to New South Wales this week to contest the penultimate round of the Dunlop Super2 Series.
He currently leads the series over Tickford Racing's Zak Best and MW Motorsport's Jayden Ojeda.
As yet, Supercars hasn't confirmed who will drive at the test.