That brought an early end to the 30-minute Practice 1 and delayed the start of the second session, shortening it from 60 to 50 minutes.
It was a quiet morning for many of the Supercars stars as their international co-drivers did the bulk of the early running.
The #22 Valvoline Audi and #1 Earl Bamber Motorsport Porsche co-driven by Garth Tander and Craig Lowndes respectively ended up fourth and fifth in Practice 2, without either local turning laps.
Jamie Whincup meanwhile shared the Triple Eight Mercedes with German Maxi Götz, ending Practice 2 seventh fastest behind the third of the Valvoline Audis.
Lee Holdsworth (Audi), Nick Percat (MARC II) and Rick Kelly (Aston Martin) also took to the track, their cars ending up 15th, 17th and 25th respectively.
“It’s exciting to hit the track finally,” Kelly told Supercars.com, returning to the 12 Hour for the first time since 2016 in an entry that includes IndyCar ace Scott Dixon.
“It’s a little tough with so many cars, so many drivers out there and the session cut so short so I’m sure the teams are screaming over the same thing.
“The car is very different to what I’m used to so it’s just trying to understand what it’s limits are at a place like this.
“We haven’t done a lot of testing compared to the others so today a big is getting Scott and myself comfortable in that car.
“So we’re just going to press through that at the moment. Scott has done one lap and I’ve done like two, so we’ve got plenty to do.”
As for driving with Dixon, Kelly added: “It’s incredible. When I first got the call from the guys to say that Scott is joining us was a massive buzz.
“He’s so great to work with, I’ve known him for a long time and I’ve never been in the same car so it is a big buzz to have that chance.”
Elsewhere, Chaz Mostert’s BMW was 19th thanks to the efforts of his co-drivers, while David Reynolds and Anton De Pasquale watched on as their Pro-Am Mercedes clocked the 26th and 30th best times respectively.
A further two sessions will round out today’s practice.