The 2023 Repco Supercars Championship got underway with official pre-season testing at Sydney Motorsport Park.
All 25 brand-new Gen3 cars were put to the test at the Eastern Creek venue on Wednesday.
The day was split into two sessions: the first session will run between 8:30am and 12:30pm, and the second between 1:00pm and 5:00pm.
Andre Heimgartner set the pace in both sessions for Brad Jones Racing in his new #8 R&J Batteries Camaro.
Once testing is complete, all attention turns to the Thrifty Newcastle 500, which runs March 10-12 on the streets of NSW's second-largest city.
Tickets for the Thrifty Newcastle 500 are available through Supercars.com and Ticketek.
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