BMW X Models vs Mercedes-Benz GLS-Class
What's the difference?

BMW X Models

$63,400 - $254,300

2026 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 A-Class

Mercedes-Benz C-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQ-Class

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLA-Class

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

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 X Models

2026 Mercedes-Benz GLS-Class

By Chris Thompson

By Mark Oastler

Safety Rating

Electric motor type

—

Diesel Turbo 6, 2.9L

Vehicle type

—

Diesel

Electric range

—

7.8L/100km (combined)

Energy consumption

—

Battery capacity

—

Seating

Likes

Smooth ride, steering acceleration
Premium look and feel
Value for power and range

Big GVM/GCM ratings
Active air suspension
Performance/economy

Dislikes

Huge battery should mean more range
Lack of physical controls
No cover on sunroof

No ANCAP rating
High purchase price
Intrusive voice activation

2026 BMW X Models Summary

When the BMW iX first showed up a few years ago, it was a promising look at what BMW seemed capable of when it comes to electric cars.

While mildly flawed, the iX was fast, comfortable and felt properly premium. Now it’s had a decent update, with the iX xDrive45 M Sport here to replace the former entry-level xDrive 40.

BMW claims among other mechanical and tech updates a power increase of 25 per cent, a 30 per cent greater energy content for the battery, a 38 per cent increase in driving range and a 17 per cent faster charging rate.

But in the time since the iX launched, there have been big strides in the premium electric SUV space, including new arrivals from European opposition like the Polestar 3; even a new American in the form of the Cadillac Lyriq.

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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

2026 BMW X Models 2026 Mercedes-Benz GLS-Class

Verdict

If anyone was worried that it would be too late to get a decent bit of value out of an entry-level iX, there's reassuring news.

With more power, range and features added to the model and the cost remaining close to its former sticker price, the iX has held up well despite now existing in a more competitive environment.

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.

BMW X Models vs Mercedes-Benz GLS-Class What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW X Models vs Mercedes-Benz GLS-Class
What's the difference?