BMW X3 vs Audi RS Q8
What's the difference?

BMW X3

$88,100 - $131,400

2026 price

View pricing & specs

Audi RS Q8

$230,827 - $255,727

2026 price

View pricing & specs

Land Rover Discovery Sport

Mercedes-Benz A-Class

Mercedes-Benz C-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQ-Class

Mercedes-Benz Eqb250

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLA-Class

Mercedes-Benz GLA35

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

Mercedes-Benz GLC300

Mercedes-Benz GLE-Class

Mercedes-Benz GLS

Mercedes-Benz GLS-Class

Mini Countryman

Mitsubishi ASX

Mitsubishi Eclipse Cross

Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2026 BMW X3

2026 Audi RS Q8

By Mark Oastler

By Stephen Ottley

Safety Rating

Engine Type

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Fuel Type

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Fuel Efficiency

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Seating

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Likes

M performance
Rear seat knee/headroom
Versatile family/driver’s car

Immense performance
Excellent handling for a big SUV
Premium design

Dislikes

No ANCAP
Prefers premium fuel
Rear seat shoulder room for three adults

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

2026 BMW X3 Summary

BMW has recently launched its fourth-generation (G45) X3 range, which comprises three petrol variants including the entry-level 20 xDrive, mid-grade 30e xDrive PHEV and top-shelf M50 xDrive.

The new trio brings revised powertrains, new exterior and interior styling, increased standard equipment, enhanced technology and an emphasis on the use of sustainable materials.

We recently trialled the five-seater flagship to see if it has the right mix of performance and practicality to maintain the X3’s enduring appeal for Aussie families.

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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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Deep dive comparison

2026 BMW X3 2026 Audi RS Q8

Verdict

This is a highly competent all-rounder, given that it has the comfort and practicality for urban family duties yet with its revered M breeding can produce a level of performance which, in competent hands, could hold its own at a track day where its capabilities could be safely explored.

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.

BMW X3 vs Audi RS Q8 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW X3 vs Audi RS Q8
What's the difference?