Audi RS6 vs Audi S7

What's the difference?

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.

If you want something large, fast and comfortable, no one does it better than the Germans, and the latest entrant to the market is Audi’s all-new S7 Sportback.

Using the uber-stylish second-generation A7 as a basis, the new S7 Sportback scores cutting-edge technology and premium appointments befitting a large luxury sedan, but it’s often what’s under the bonnet that will draw buyers in.

This new S7 replaces the old version’s 4.0-litre twin-turbo V8 for a 2.9-litre twin-turbo petrol V6 but, don’t fear, as having fewer cylinders has not dulled its performance or appeal.

As a whole though, does the new Audi S7 Sportback deliver a winning blow?