BMW X4 vs Mercedes-Benz GLB-Class
What's the difference?

BMW X4

$43,999 - $83,880

2022 price

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Mercedes-Benz GLB-Class

$65,400 - $106,228

2026 price

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Land Rover Discovery Sport

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

2022 BMW X4

2026 Mercedes-Benz GLB-Class

By Stephen Corby

By Tim Nicholson

Safety Rating

Engine Type

Turbo 4, 2.0L

Turbo 4, 1.5L

Fuel Type

Premium Unleaded Petrol

Fuel Efficiency

7.9L/100km (combined)

6.1L/100km (combined)

Seating

Likes

Slick exterior
Punchy engine
Excellent steering

Exterior design
Impressive, useful in-car tech
More refined than predecessor

Dislikes

Cabin size
Restricted visibility
Boot design

Standard glass roof
Expensive servicing costs
No spare wheel

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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2026 Mercedes-Benz GLB-Class Summary

There’s nothing quite like the Mercedes-Benz GLB. It’s a smallish mid-size SUV with a third seating row (strictly for small children… ), it has a distinctive boxy shape, and for the second generation, you can have a mild-hybrid or fully-electric powertrain. It is the definition of versatile.

The previous GLB was petrol only and Mercedes also offered the similar looking EQB as part of its EQ electric sub-brand. The separate EV model strategy wasn’t working so the German carmaker followed rival BMW’s plan of simply offering electric versions of popular models. Hence the two powertrain options for the new GLB.

This time around Benz has sharpened up pricing, added a bunch of new tech, and developed a new vehicle architecture, while retaining what buyers loved about the original.

Is the new-gen GLB a success?

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Deep dive comparison

2022 BMW X4 2026 Mercedes-Benz GLB-Class

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.

Verdict

The new GLB is a worthy successor to the original. It has retained everything that made it such a unique proposition but improves where it counts - interior space and comfort, in-car and safety tech, standard features, powertrain, ride quality and, importantly, value-for-money.

The EV is the pick of the powertrains and while I didn’t get to drive it, the GLB250+ is the best value.

Servicing is expensive and the standard glass roof is a bugbear but if you can cope with those things, the boxy GLB is a terrific smallish family SUV.

BMW X4 vs Mercedes-Benz GLB-Class What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

BMW X4 vs Mercedes-Benz GLB-Class
What's the difference?