Chaz Mostert set the pace in the opening practice session of the Vodafone Gold Coast 600.
The Prodrive Racing Australia driver impressed late in the 30 minute hit out to post a 1:11.05s to shoot to the top of the times.
Mostert times arrived just moments before the session was red flagged with a minute remaining.
Nissan Motorsport's Simona de Silvestro nudged the tyre barrier at the final corner after misjudging the entry over the kerbs.
There wasn't enough time to restart the session, which left Michael Caruso in second spot after the Nissan driver clocked a time 0.08s shy of Mostert.
“I think that red flag at the end probably hurt a few people's different tyre runs,” said Mostert, who shared the car with co-driver Steve Owen.
“We did a bit of a different strategy, we ran our co-drivers at the start to get them comfortable.
“The car felt OK, we've still got a lot of work to do. It's not where we want it, definitely better than years past here, but we've got to get our head in the book and make it a bit better.”
Triple Eight's Shane van Gisbergen ended up third having moved to the top of the times by the halfway mark, while Lee Holdsworth was fourth in the Preston Hire Racing Commodore.
Scott McLaughlin was fifth in the #17 Shell V-Power Racing Falcon after an eventful session that saw him graze the wall at Turn 3.
He was also lucky to avoid the pit wall when he locked up while entering pit lane.
Co-driver Alex Premat enjoyed a brief run out in the car towards the end of Practice 1.
“I hit the wall, a bit of a balls-up that one,” said McLaughlin.
“At the end of the day Saturday is going to be wet so just trying to find a little bit of a confidence booster and that certainly wasn't it.
“It (the car) was alright, just one of those things, just got to work on it.”
Supercheap Auto Bathurst 1000 winner David Reynolds was sixth in the Erebus Holden ahead of title contender Jamie Whincup (Red Bull Holden).
The top 10 was completed by James Courtney (Mobil 1 HSV Racing), James Moffat (Garry Rogers Motorsport) and Mark Winterbottom (Prodrive).
Nissan Motorsport's Rick Kelly spent time in the garage due to an oil overflow issue.
The Supercars co-drivers will be in action for Practice 2, which is scheduled to begin at 1400 local time.
Results: Virgin Australia Supercars Championship, Vodafone Gold Coast 600 Practice 1
1 | Supercheap Auto Racing | C.Mostert/S.Owen | Ford Falcon FG/X | 1:11.0597*SS | |
2 | Nissan Motorsport | M.Caruso/D.Fiore | Nissan Altima | 1:11.1445 SS | 00.0848 |
3 | Red Bull Holden Racing Aust | Shane Van Gisbergen | Holden Commodore VF | 1:11.1754 SS | 00.1157 |
4 | Preston Hire Racing | Lee Holdsworth | Holden Commodore VF | 1:11.2187 SS | 00.1590 |
5 | Shell V-Power Racing Team | S.McLaughlin/A.Premat | Ford Falcon FG/X | 1:11.3937 SS | 00.3340 |
6 | Erebus Penrite Racing | David Reynolds | Holden Commodore VF | 1:11.5506 SS | 00.4909 |
7 | Red Bull Holden Racing Aust | Jamie Whincup | Holden Commodore VF | 1:11.6542 SS | 00.5945 |
8 | Mobil 1 HSV Racing | J.Courtney/J.Perkins | Holden Commodore VF | 1:11.6906 S | 00.6309 |
9 | Wilson Security Racing GRM | J.Moffat/R.Muscat | Holden Commodore VF | 1:11.7289 SS | 00.6692 |
10 | The Bottle-O Racing Team | M.Winterbottom/D.Canto | Ford Falcon FG/X | 1:11.7308 SS | 00.6711 |
11 | Shell V-Power Racing Team | F.Coulthard/T.D'Alberto | Ford Falcon FG/X | 1:11.7354 W | 00.6757 |
12 | Freightliner Racing | Tim Slade | Holden Commodore VF | 1:11.7809 SS | 00.7212 |
13 | Sengled Racing | Rick Kelly | Nissan Altima | 1:11.8495 SS | 00.7898 |
14 | TeamVortex | Craig Lowndes | Holden Commodore VF | 1:11.8693 SS | 00.8096 |
15 | Boost Mobile | Nick Percat | Holden Commodore VF | 1:11.9180 SS | 00.8583 |
16 | TEKNO Woodstock Racing | Will Davison | Holden Commodore VF | 1:11.9455 SS | 00.8858 |
17 | Mobil 1 HSV Racing | S.Pye/W.Luff | Holden Commodore VF | 1:11.9604 SS | 00.9007 |
18 | Wilson Security Racing GRM | G.Tander/J.Golding | Holden Commodore VF | 1:12.0256 SS | 00.9659 |
19 | carsales Racing | Todd Kelly | Nissan Altima | 1:12.2210 SS | 01.1613 |
20 | Erebus GB Galvanizing Racing | Dale Wood | Holden Commodore VF | 1:12.2851 S | 01.2254 |
21 | Monster Energy Racing | C.Waters/R.Stanaway | Ford Falcon FG/X | 1:12.3469 SS | 01.2872 |
22 | Team CoolDrive | T.Blanchard/T.Hazelwood | Holden Commodore VF | 1:12.5961 SS | 01.5364 |
23 | Team Harvey Norman | Simona De Silvestro | Nissan Altima | 1:12.8318 S | 01.7721 |
24 | MEGA Racing | J.Bright/G.Jacobson | Ford Falcon FG/X | 1:12.9392 S | 01.8795 |
25 | Plus Fitness Racing | Aaren Russell | Holden Commodore VF | 1:13.1620 SS | 02.1023 |
26 | Repair Management Aust Racing | Alex Rullo | Holden Commodore VF | 1:14.6779 SS | 03.6182 |