Victorian teams will take to Winton Motor Raceway on Friday, with 16 cars to hit the rural circuit for the second round of official pre-season testing.
Ahead of Friday's Winton test, here are five things Supercars.com learned from last week's running at Queensland Raceway.
1) Triple Eight wants better reliability
Red Bull Ampol Racing missed out on the title last season, with both cars scuppered by inconsistency at times in 2020.
However, the team ended 2020 strongly with victory at Bathurst for Shane van Gisbergen, who admitted at the test that the team used Friday to iron out issues that punctuated the team's title bid last year.
Triple Eight hasn't won a title since 2018, with 2017 the last drivers' championship for the team.
"We had a lot of test items, but the main thing was reliability," van Gisbergen said.
"We had a couple of issues last year. So, just logging a lot of laps, Garth [Tander] had a few race runs too.
"It was good. Car was faultless all day, and we had the most laps by a fair bit."
2) MSR ready for next step
Matt Stone Racing has the two youngest drivers on the 2021 grid in its stable.
However, both Goddard and Jake Kostecki learned a great deal from their SuperLite programme last season, and it showed last week.
The team completed a faultless test, with Goddard firing in the quickest lap of the day.
Both cars combined for 135 laps on the day, with the #34 and #35 entries completing a combined 421km of running.