Audi RS Q8 vs BMW X4
What's the difference?

Audi RS Q8

$230,827 - $255,727

2026 price

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BMW X4

$43,999 - $83,880

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

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Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2026 Audi RS Q8

2022 BMW X4

By Stephen Ottley

By Stephen Corby

Safety Rating

Engine Type

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Turbo 4, 2.0L

Fuel Type

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Premium Unleaded Petrol

Fuel Efficiency

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7.9L/100km (combined)

Seating

—

Likes

Immense performance
Excellent handling for a big SUV
Premium design

Slick exterior
Punchy engine
Excellent steering

Dislikes

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

Cabin size
Restricted visibility
Boot design

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 BMW X4 Summary

Look, personally I found it amusingly weird when German car companies started sloping the roofs on sedans and calling them “coupes”, despite the fact that they had four doors. Their ability to imagine segments, and find buyers in them, that have no reason to exist is almost something to admire.

But turning SUVs, like the already very capable X3, into coupes? Frankly, it’s like turning an ass into an elbow. Lower the roof to reduce headroom and shrink the boot? Why? Because it will look so sexy people won’t be able to resist it. That’s BMW’s approach with the X4 and, somehow, it seems to work.

And, to be fair, sporty SUVs are not a BMW thing: the Range Rover Evoque, Audi Q5 Sportback, and Mercedes-AMG’s range of GLC Coupé models have all taken off, each contributing toward an unlikely trend that doesn’t seem to be going away any time soon.

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Deep dive comparison

2026 Audi RS Q8 2022 BMW X4

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

Okay, so the BMW X4 xDrive30i is neither an ass nor an elbow, to be fair, it's more of a bulky shoulder muscle, or two.

I can't say I'll ever love the X4, the idea of it is a bit too weird for me, but I can't help admiring the way it looks and the way it drives.

It's a bit like a sedan on steroids - or an SUV on a diet, depending on your perspective - but that doesn’t take away from the fact that it’s fun to drive, comfortable and retains just enough coolness, and just enough practicality, to make it worthwhile.

Audi RS Q8 vs BMW X4 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Audi RS Q8 vs BMW X4
What's the difference?