The last time six different primary drivers won consecutive races was 2018.
You have to go back to 2017 to find a string of seven different winners in as many races, which can be matched on Saturday.
2017 saw the last string of seven in seven
Fabian Coulthard and Whincup shared the wins at Sydney Motorsport Park, Waters combined with Richie Stanaway to win the Sandown 500, before David Reynolds and Luke Youlden won the Great Race for Erebus.
Mostert and Steve Owen won the Gold Coast opener, before Scott McLaughlin and Alex Premat won the Sunday race.
Van Gisbergen made it seven in seven in the Pukekohe opener, before McLaughlin ended the streak on the Sunday.
The championship record is nine, between Race 19 and Race 27 in 2013.
Eight years ago, nine drivers won in nine starts across the Darwin, Townsville, Ipswich and Winton events: Craig Lowndes (Darwin), Will Davison and Garth Tander (Townsville), Whincup, Scott McLaughlin and Mostert (Ipswich), and James Moffat, Mark Winterbottom and James Courtney (Winton).