Mercedes-Benz GLE450 vs Audi RS6

What's the difference?

VS
Mercedes-Benz GLE450
Mercedes-Benz GLE450

$149,969 - $165,400

2026 price

Audi RS6
Audi RS6

$252,600 - $399,000

2026 price

Summary

2026 Mercedes-Benz GLE450
2026 Audi RS6
Safety Rating

Engine Type
Diesel Turbo 6, 3.0L

Twin Turbo V8, 4.0L
Fuel Type
Diesel

Premium Unleaded Petrol
Fuel Efficiency
7.4L/100km (combined)

11.8L/100km (combined)
Seating
5

5
Dislikes
  • Almost unjustifiably expensive
  • Some will find interior outdated
  • Servicing costs

  • Unbelievable price over standard RS6
  • You probably won’t ever see one
  • Everyone will look at you
2026 Mercedes-Benz GLE450 Summary

Well into its second generation, the Mercedes-Benz GLE remains a key player in the luxury large SUV space.

Though it lags well behind the BMW X5 in terms of sales, by about half in fact, the GLE still aims to exude status and luxury, helped by a facelift in 2023.

In its category, there are however plenty of badges with the power to lure buyers away: Audi, Porsche and Range Rover. Even non-Euros like Genesis and Lexus.

Despite the facelift, the category is moving on with big screens and more tech, where the GLE still has to rely on some traditional charm to win over wallets - especially in our big diesel ‘450d’ guise.

A week behind the wheel around and out of the city should reveal whether the GLE still has a strong-enough USP in 2025.

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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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Deep dive comparison

2026 Mercedes-Benz GLE450 2026 Audi RS6

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