On Monday, an unverified image purporting to be the proposed layout for the first MotoGP race in downtown Adelaide was circulated.
Local radio station FiveAA speculated the sensitive document may have been prematurely released by a disgruntled member of parliament over plans to fell roughly 50 trees.
The latest look shows what appears to be significant revisions to the track beyond those flagged in an initial map released with the announcement of the event in February.
Almost every corner from the current circuit that Supercars races on has been reshaped or omitted entirely, while several large gravel traps have been added.
What is currently the first sequence of corners – the Senna Chicane – has been turned into esses with gravel traps on either side.
The Wakefield Road section has been shortened with the track cutting across East Terrace to create a new straight, with esses at either end.
A leaked image of the proposed 2027 Grand Prix of Australia map that will take place in Adelaide. Image: FiveAA
The Rundle Road section also takes on a new guise when compared to the first concept, with a tighter approach angle to the turn that connects with Dequetteville Terrace.
The final sector is relatively unchanged from the first concept. However, the latest look shows where gravel traps could be placed as well as the pit complex and proposed grandstands.
MotoGP organisers recently flagged that the revised layout will be made public soon.
The changes will also impact the Supercars Grand Final, to be held just weeks after the new event on essentially the same layout.
Adelaide officials have consulted with Supercars and its drivers and teams on ways to make minor changes between events to suit the V8 machines.
Pater Malinauskas, Jack Miller, and Carlos Ezpeleta inspect the preliminary plan for MotoGP at Adelaide, revealed in February.