Audi RS6 vs Peugeot 408

What's the difference?

VS
Audi RS6
Audi RS6

$252,600 - $399,000

2026 price

Peugeot 408
Peugeot 408

$57,990 - $57,990

2026 price

Summary

2026 Audi RS6
2026 Peugeot 408
Safety Rating

Engine Type
Twin Turbo V8, 4.0L

Turbo 3, 1.2L
Fuel Type
Premium Unleaded Petrol

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

4.7L/100km (combined)
Seating
5

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

  • No physical spare tyre
  • ‘i-Cockpit’ instrument package
  • No rear centre armrest/cupholders
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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2026 Peugeot 408 Summary

Unveiled globally in 2022 before arriving here in late 2024 as a plug-in hybrid GT, the Peugeot 408 has been a niche player for the long-established French brand with less than 100 examples finding homes here last year.

But 2025 marked the transition to a new ‘plug-less’ mild-hybrid powertrain for the mid-size crossover-style SUV with the hope it may take a bigger swing at segment heavyweights.

We spent a week with the current 408 GT Premium Hybrid to see if its efficiency-focused petrol-electric set-up has what it takes to win a spot on your upscale five-seat SUV shopping list.

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Deep dive comparison

2026 Audi RS6 2026 Peugeot 408

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