Audi RS6 vs Holden Calais

What's the difference?

VS
Audi RS6
Audi RS6

$252,600 - $399,000

2026 price

Holden Calais
Holden Calais

$9,995 - $27,800

2018 price

Summary

2026 Audi RS6
2018 Holden Calais
Safety Rating

Engine Type
Twin Turbo V8, 4.0L

V6, 3.6L
Fuel Type
Premium Unleaded Petrol

Premium Unleaded Petrol
Fuel Efficiency
11.8L/100km (combined)

9.1L/100km (combined)
Seating
5

5
Dislikes
  • Unbelievable price over standard RS6
  • You probably won’t ever see one
  • Everyone will look at you

  • Fuel use on the high side
  • Four-cylinder turbo petrol unavailable
  • Diesel not an option
2026 Audi RS6 Summary

When I say this is a rare review, I’m talking about the kind of rare that means you can’t even buy the car you’re reading about.

The 2026 Audi RS6 Avant GT you’re looking at in the pictures around this story is number 248 of 660. That’s six-hundred and sixty worldwide.

In Australia, there are only 22 RS6 GTs, and they’re all sold - at exorbitant prices, mind you, but we’ll get to that.

The RS6 GT is essentially a production version of the Audi RS6 GTO concept, built in 2020 and inspired by the Audi 90 quattro IMSA GTO race car, which means the RS6 GT carries a lot of ‘90 GTO’ in the way it looks. More on that shortly.

Aside from its extremely limited availability and its design package, there are some mechanical changes to increase the appeal of the RS6 GT, though whether any of its owners will put the on-road (or on-track) ability of this special wagon from Ingolstadt to the test remains to be seen.

A couple of days to live with one of the few RS6 GTs in Australia should reveal how special this car feels, and result in at least one example of the rarity being driven good and proper.

@carsguide.com.au Hens’ teeth have nothing on the 2026 Audi RS6 Avant GT. #audi #rs6 #audirs6 #cartok #fyp ♬ original sound  - CarsGuide.com.au
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2018 Holden Calais Summary

If Holden had a dollar for every time someone had criticised the new and international flavour of Australia’s formerly home-grown hero, it would surely have more than enough spare cash to blow the dust of that vast South Australian factory and restart local Commodore production immediately.

Hell, there’d probably be enough left over to relaunch the Camira while they were at it. And maybe even knock out a new Gemini or two.

So we’re not going to do that again here. The all-new Commodore, in this case the Calais Tourer, is now here - granted having travelled further than the one it replaces - and so we’ll be playing this review with the straightest of bats.

Because the truth is, if you peel the badging - and thus the swirling emotion - off its elongated rump, then you’ll find this German-built Tourer is, really and truly, a very good thing.

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Deep dive comparison

2026 Audi RS6 2018 Holden Calais

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