Audi RS Q8 vs Audi SQ5
What's the difference?

Audi RS Q8

$230,827 - $255,727

2026 price

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Audi SQ5

$49,990 - $89,950

2022 price

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Land Rover Discovery Sport

Mercedes-Benz EQ-Class

Mercedes-Benz Eqe53

Mercedes-Benz Eqs450

Mercedes-Benz G-Class

Mercedes-Benz G580

Mercedes-Benz G63

Mercedes-Benz GLA-Class

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

Mercedes-Benz GLE-Class

Mercedes-Benz GLE400

Mercedes-Benz GLE450

Mercedes-Benz GLS

Mercedes-Benz GLS-Class

Mercedes-Benz Gls450

Mercedes-Benz Gls600

Mini Countryman

Mitsubishi Eclipse Cross

Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2026 Audi RS Q8

2022 Audi SQ5

By Stephen Ottley

By Andrew Chesterton

Safety Rating

Engine Type

—

Diesel Turbo 6, 3.0L

Fuel Type

—

Diesel/Electric

Fuel Efficiency

—

7.0L/100km (combined)

Seating

—

Likes

Immense performance
Excellent handling for a big SUV
Premium design

Style with little sacrifice
Plenty of on-board tech
SQ5 is a fun and engaging drive

Dislikes

Big power equals big thirst
Seven-year warranty costs extra
No current ANCAP rating

Price penalty for Sportback
Regular Q5 Sportback more premium than performance-focused
Cabin not quite premium at every touchpoint

2026 Audi RS Q8 Summary

Not to spoil the illusion, but at their core the Lamborghini Urus, Bentley Bentayga and Porsche Cayenne all share the same base mechanical DNA. And yet despite their huge price tags and enviable reputation for performance, the fastest SUV isn’t one of them - it’s an Audi.

The new Audi RS Q8 Performance, to be precise, which has lapped the famous Nurburgring in Germany in record time, usurping the Cayenne Turbo GT in the process.

Boasting the most powerful internal combustion engine Audi has ever installed in a production car, ceramic brakes and a highly advanced suspension package, the RS Q8 Performance takes the German brand’s SUVs to a new level of, how do I put this… performance.

So it’s an appropriate name, but is it an appropriate car for Australian buyers looking for something fast, spacious and special? Read on to find out…

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2022 Audi SQ5 Summary

The Audi Q5 now has a sportier-looking sibling, with the German brand's all-time best-selling SUV welcoming a sleeker, more aggressive solution it calls its Sportback range.

And look, spoiler alert, it looks better than the regular Q5. It's as simple as that. So if that's all you're here to find out, feel free to close the laptop, put the phone away, and move on with your day.

But you'd be doing yourself a disservice, because there are more questions to be answered here. Like will you paying in on-board comfort for this new raked roofline? Do the Sportback's sporty intentions make for a more annoying daily drive? And how much does Audi want you to pay for one?

All these questions and more answered. So stay with me.

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Deep dive comparison

2026 Audi RS Q8 2022 Audi SQ5

Verdict

The Audi RS Q8 Performance is a lot - of everything. It offers lots of power, lots of performance, lots of space and lots of luxury. But it’s also a lot of money, and at more than $250k it’s not going to be on everyone’s shopping list. It’s a very niche proposition for a small group of buyers. For those select few, those who want a lot of everything and who crave the ultimate of whatever product they’re buying, then the RS Q8 Performance is going to be a very tempting proposition - even if they never set any lap record in it.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

Verdict

Let’s forget the money, for a second, because yes, you’re paying more for the Sportback variant. But if you can afford it, then why wouldn’t you. This is a sleeker, sportier and more stylish answer to the regular Q5, which was already a super-solid offering in the segment. And as far as I can tell, the practicality sacrifices you have to make are minimal at best.

So why not?

Audi RS Q8 vs Audi SQ5 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Audi RS Q8 vs Audi SQ5
What's the difference?