Fabian Coulthard was put to work just hours after his Walkinshaw Andretti United signing was made public.
Coulthard and Warren Luff were confirmed as WAU’s 2022 co-drivers on Tuesday morning.
Winton pre-season testing commenced on Tuesday, with Coulthard and Luff at the track with WAU.
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Nick Percat, who shifted from Brad Jones Racing, turned his first laps aboard his #2 Mobil 1 NTI Commodore in the morning.
Just after midday, Coulthard suited up and sampled Chaz Mostert’s #25 Mobil 1 Optus Commodore.
Mostert and Coulthard exchanged feedback before the latter took to the car.
Coulthard all smiles at Winton on Tuesday
"It’s a great vibe," Coulthard told Supercars.com of his new team.
"With Chaz, Nick and Luffy, we all get on well, so that’s a good recipe.
"I’m trying to leech of them at the moment, and learn as much as I can about the car."
Coulthard’s deal with WAU was confirmed just weeks after he was released from his Team Sydney contract.
The Kiwi was replaced at the new-look PremiAir Racing by countryman Chris Pither.
Coulthard previously raced for DJR Team Penske, and scored a Bathurst podium for the team in 2017.
He also raced for Brad Jones Racing between 2012 and 2015, and scored a provisional Bathurst pole for the team.
Coulthard is no stranger to the Walkinshaw fold, having raced a sister car for the team in 2010 and 2011.
Joining WAU presents Coulthard with a strong chance to end his Great Race duck, even if he is now a co-driver.
Mostert and Lee Holdsworth dominated last year’s Repco Bathurst 1000 from pole position.
Holdsworth later sealed a full-time return with Grove Racing, opening the door at WAU for Coulthard.
While previously reaffirming his desire to make a full-time return, the 471-race veteran was keen to a join a team in form.
"Like any driver, you want to align yourself with iconic brands," he said.
"They’re prestigious names, and I’m very proud to be part of this organisation.
"[The signing process] was relatively quick. They said what they wanted, I said what I wanted.
"Of late, this team has the runs on the board… obviously they had a very strong Bathurst, winning the race.
"To get a plumb co-drive was a high priority for me.”
Mostert and Percat will commence their 2022 campaigns in Sydney next week.