Erebus Motorsport has quietly ended one of the longest-running stand-offs in the Supercars paddock, joining General Motors' "Team Chevy" data-pooling alliance after spending most of the season insisting it would go it alone.
The Melbourne squad's switch was confirmed at the Darwin Triple Crown, where its cars carried Chevrolet windscreen banner stickers that had not been there before — the small, visible sign of a team that had until now been the only one of GM's four Chevrolet outfits to sit outside the technical alliance. Both Cooper Murray and rookie Jobe Stewart had run without the branding at the previous round at Symmons Plains.
Team 18, Matt Stone Racing and PremiAir Racing have all shared data under the program since the start of the year. Erebus, by contrast, made a point of preferring complete independence — a stance that became increasingly awkward as its two young drivers languished near the foot of the standings, Murray 22nd and Stewart 24th.
Erebus chief executive Barry Ryan confirmed to V8 Sleuth that a confidential agreement was now in place, but declined to elaborate. GM's Supercars racing program manager, Simon McNamara, was similarly coy when asked about the new stickers, framing the move as a goodwill gesture rather than a formal capitulation. "Barry is a very generous man," McNamara said. "Barry and Betty [Klimenko], they're very supportive of Chevrolet, so nice of them to put that on there."
The understated confirmation belies how firmly Erebus had previously dug in. With General Motors having lost its powerhouse homologation team Triple Eight, the manufacturer pushed for an all-in approach to keep its Camaros competitive — and Erebus was the lone holdout. As recently as April, Ryan was adamant the team would stay outside the tent despite a lean start to the campaign.
"Yeah, 100 percent," Ryan said at the time when asked if he stood by the call. "I've said to GM, once we really believe in their system, because they are only developing their system, we'll consider it." He argued then that the satisfaction of independence outweighed any benefit his inexperienced drivers might gain from accessing rival teams' data.
That his position has softened by mid-season points to the pressure of results. Erebus, the 2023 drivers' champions through Brodie Kostecki, has slid to the back of the teams' standings in 2026 with a line-up pairing a second-year driver in Murray and a rookie in Stewart. The team has framed Darwin as a step in the right direction — "It was a positive weekend in some ways," Ryan offered in a team video — even as the broader season has underlined how far the squad has fallen from its title-winning peak.
The timing at least came against a more upbeat backdrop for the wider Chevrolet camp. Anton De Pasquale delivered a commanding victory at Hidden Valley for GM, his second race win of the year, as the Darwin weekend handed the manufacturer plenty to celebrate. Whether Erebus's belated buy-in to the alliance helps drag Murray and Stewart up the order — and revives a team that still circles the Bathurst 1000 as its best chance of silverware — will be the real measure of a decision Ryan resisted for so long.
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*Originally published on [Motorsports Global](https://motorsports.global/article/erebus-joins-team-chevy-alliance-after-months-of-refusing). Visit for full coverage.*