Mazda CX-9 vs Mercedes-Benz GLS-Class
What's the difference?

Mazda CX-9

$18,990 - $42,990

2021 price

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Mercedes-Benz GLS-Class

$170,169 - $424,900

2026 price

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Land Rover Discovery Sport

Mercedes-Benz EQ-Class

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

Mercedes-Benz GLE-Class

Mercedes-Benz GLS

Mercedes-Benz GLS-Class

Mitsubishi Eclipse Cross

Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2021 Mazda CX-9

2026 Mercedes-Benz GLS-Class

By Justin Hilliard

By Mark Oastler

Safety Rating

Engine Type

Turbo 4, 2.5L

Diesel Turbo 6, 2.9L

Fuel Type

Unleaded Petrol

Diesel

Fuel Efficiency

8.4L/100km (combined)

7.8L/100km (combined)

Seating

Likes

New 10.25-inch display
Seven-seater's versatility
Comfortable ride

Big GVM/GCM ratings
Active air suspension
Performance/economy

Dislikes

Expensive AWD option
Six-seater's compromises
Older ANCAP safety rating

No ANCAP rating
High purchase price
Intrusive voice activation

2021 Mazda CX-9 Summary

The second-generation Mazda CX-9 may have been on sale in Australia for nearly five years now, but it remains the second best-selling large SUV using unibody construction (as opposed to old-school, off-road-focused body-on-frame).

That said, it is getting on a bit, so Mazda’s given it an update with a twist for 2021, hoping to inject a little bit more life into its flagship model.

And when we say twist, we mean it. After all, who would’ve thought there’d ever be a six-seat CX-9? Well, we’ve checked it out to see if it’s the version we needed all along. Read on.

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2026 Mercedes-Benz GLS-Class Summary

The ‘Upper Large SUV over $120K’ segment of the Aussie new-car market is what you might call the top end of town, not only in terms of the extravagant models available but also their purchase prices, which stretch well into six figures and require monthly lease payments that rival home mortgages.

It’s where you’ll find some of the most prestigious marques in the automotive world including Rolls-Royce, Aston Martin, Bentley, Ferrari, Lamborghini, Range Rover, Lexus and BMW. And, of course, Mercedes-Benz with its big GLS which represents the flagship of the German manufacturer’s SUV fleet.

It was given a refresh in 2023 with cosmetic and multimedia upgrades along with powertrain enhancements, but there have only been minor changes since then. We were recently entrusted with the keys to the latest GLS to see if the ‘S-Class of SUVs’ leaves any room for improvement.

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Deep dive comparison

2021 Mazda CX-9 2026 Mercedes-Benz GLS-Class

Verdict

The CX-9 is still a great option for families looking for a large SUV, even if it is starting to show its age as new rivals continue to launch with newer technologies.

That said, the availability of a luxury-focused six-seat configuration (Azami LE AWD) for the first time might be enough to convince some buyers to give it further consideration.

But for others who need the versatility of seven seats, this is still the CX-9 we’ve all come to know and love – but just a little bit better – particularly in its best-selling Azami AWD form.

Verdict

The GLS450d impresses as an entry-level grade, as it’s a more family-friendly allrounder than the specialised AMG and Maybach variants. Its combination of a torque-rich diesel 48V hybrid drivetrain, air-cushioned suspension and plush interior are as well suited to luxury urban travel as they are to grand touring, where its heavy towing and generous load-carrying capabilities can shine. Whether it’s worth around $200K drive-away, only those who shop at the top end of town can decide.

Mazda CX-9 vs Mercedes-Benz GLS-Class What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Mazda CX-9 vs Mercedes-Benz GLS-Class
What's the difference?