Mercedes-Benz GLB-Class vs Mazda CX-8

What's the difference?

It’s easy to say the GLB35 doesn’t deserve to be called an AMG when looking at its credentials on paper, but get behind the wheel and it’s evident Affalterbach played a key role in making it feel as special to drive as it should be.

The GLB35 has all of the great qualities of the GLB250 and other GLB variants, but successfully adds a performance focus to make for an even more compelling package.

Indeed, the GLB35 proves you can pretty much have it all.

So, what did my family think about the Mazda CX-8 GT SP diesel all-wheel drive? I love how it performs on the road - it's super easy to drive and you don't notice how large it is in a car park.

There are some great family-friendly features scattered throughout and I like how practical this is too with the extra seats and top-tether points. The multimedia system isn’t my favourite and I would have preferred to have seen a few extra airbags and a 360-degree view camera, but overall, it’s a good family car and gets an 8.0/10 from me. 

My son loved the sun blinds and the cool colour of the seats. He also gives it an 8.0/10.

With the boxy and therefore rugged-looking GLB laying some great foundations, it’s no surprise the GLB35 looks pretty damn good – to these eyes, at least.

Being an AMG model, it stands out from the crowd with an aggressive body kit, with the chunky bumpers, aerodynamic roof spoiler and racy rear diffuser all unique alongside the now-signature Panamericana grille insert.

A set of 20-inch alloy wheels with 255/40 tyres ups the ante at the side, where the carryover black plastic wheel-arch and skirt cladding serves as an obligatory reminder that this is an SUV.

Also of note are the nicely designed LED headlights and tail-lights, which literally light the way, but there’s no getting past the bespoke diffuser element, which integrates the sports exhaust system’s dual 90mm tailpipes.

Inside, the GLB35 is a technological tour de force, with a pair of 10.25-inch high-resolution displays proudly sitting side by side atop the dashboard, with one the central touchscreen and the other the digital instrument cluster.

Both are powered by Mercedes-Benz’s MBUX multimedia system, which arguably remains the best there is today thanks its speed and breadth of functionality and input methods.

The GLB35 is also properly premium. Lugano leather upholstery covers the seats and armrests, while Nappa trims the sports steering wheel. Even the door shoulders and inserts get ‘cow hide’, although theirs is of the artificial variety.

Soft-touch materials are used for the upper dashboard, leaving hard plastics to the lower sections, which is what you’d expect for the price.

While the black headliner makes for a dark cabin, brightness comes from the metallic trim used throughout, notably on the steering wheel, dashboard, doors and centre console. And let’s not forget the pop of colour provided by the addictive ambient lighting.

And mercifully, scratch- and fingerprint-hungry gloss-black accents are limited to the surrounds of the turbine-style front air vents, dual-zone climate controls and centre console.

Unique to the GLB35 are Carbon Structure trim and stainless-steel sports pedals, just in case you forgot you weren’t driving a regular GLB.

To be honest, I can't really tell the CX-8 and CX-9 apart on the road. They're both large SUVs that sport the classic Mazda bonnet - sharp and long. Up close, the CX-9 has a bulkier shape but otherwise they are remarkably similar.

The CX-8's darkened grille generates some interest with its lattice-work and there are enough shiny chrome accents scattered about the car that it looks pretty.

Yet, the sporty sharpness that Mazda is known for is still hinted at with its shaping and the 19-inch black alloy wheels.

Our model is finished in 'Platinum Quartz Metallic' and it is the highlight for the exterior styling for me. I think because it's such an interesting colour to look at - it varies a lot depending on lighting conditions. Sometimes, it almost has a sheen of pink to it and at others, it looks like pearly sand.

The interior looks polished and refined with its burgundy leather trim and soft-touchpoints. Again, there is a lot of chrome inside to make otherwise dull features, like air vents, pop out.

Measuring 4650mm long (with a 2829mm wheelbase), 1845mm wide and 1660mm tall, the GLB35 is more like the GLC43 in size than the GLA35, making it a mid-size SUV despite its small underpinnings. And that is good news for practicality.

Cargo capacity with the 50/50 split-fold third row stowed is more than solid, at 565 litres (VDA), but it can be increased to a cavernous 1800L with the 40/20/40 split-fold middle bench also not in use. If six or seven passengers are onboard, though, there’s very little room to move.

Nonetheless, the boot is still well packaged, featuring a huge aperture, no load lip, and a flat floor, which make loading and unloading bulkier items a hell of a lot easier. And even the load cover can be stored underfloor when out of action. How good.

There are also four tie-down points, two bag hooks, a side storage net and a 12V power outlet on hand to make matters even easier, while the rear seats can be stowed from the boot.

While we’re on the topic, Mercedes-Benz says the third row can accommodate passengers up to 168cm tall, with the middle bench able to slide fore and aft by up to 140mm.

Yes, I'm too tall, at 184cm, but I can still sit in the very back, although not in total comfort. All in all, about a centimetre of legroom and negligible headroom and toe-room are on offer there for me.

That said, getting in and out in the first place is the real challenge here, with the middle bench unable to tumble forward for easy ingress and egress. Yep, you’re not going to look smooth either way. Children can deal with it, but adults won’t be thrilled.

Therefore, the middle bench is the place to be, even when it’s slid all the way forward. Behind my driving position, it offers about a centimetre of legroom, but this can be increased to several inches by sliding it all the way back.

Either way, plenty of toe-room is available alongside more than an inch of headroom. The latter is more impressive when you consider that’s what you get with the standard dual-pane panoramic sunroof fitted.

Even better, the second row can seat three adults at a pinch, partly thanks to the low transmission tunnel, which means there’s the right amount of space for six fully grown feet across the two footwells. It goes without saying children will again be fine.

Speaking of which, four ISOFIX and five top-tether anchorage points are on hand for fitting up to four child seats across the second and third rows, which makes the GLB35 a serious option for families that like to be sporty.

There are plenty of in-cabin storage options, with the large central storage bin featuring a pair of USB-C ports, while the glovebox is also quite useful, even if it is oddly shaped. And there’s also a sunglasses holder in front of the rearview mirror.

The centre console’s cubby isn’t really designed for storage, with it basically taken up by two cupholders, another USB-C port and a wireless smartphone charger.

The front door bins can accommodate one small and two regular bottles each, which is great, while their rear counterparts can take one small and one regular apiece.

Second-row occupants also have access to a fold-down armrest with another pair of cupholders, but being of the retractable variety, they’re flimsy.

These passengers also have two USB-C ports, with the pair folding out below a small cubby and air vents, which are found at the back of the centre console. Storage nets are also fitted on the front seat backrests.

And don’t worry; the third row gets in on the action, with two cupholders (one regular, the other small) splitting the seats, which have individual USB-C ports and device straps to the sides.
 

The CX-8 is a very practical family hauler because there's ample room in all three rows. Yes, even adults will be able to squeeze into that third row without too many complaints!

All rows enjoy well-cushioned seats and up front they are electrically adjustable, but unfortunately, only the driver's side has lumbar support.

The middle row can slide forward manually or by using the electric button found on the side of the seats... but doing it yourself is way faster.

They do slide far enough forward that you won't embarrass yourself too much when you have to clamber into the third row. Where the seats have a 50/50 split-fold and manual adjustments (accessed via the boot).

In the first two rows there are lots of individual storage options but the front enjoys the most. The middle console is deep enough to be useful and I like the dual opening lid. Each row gets a couple of cupholders and drink bottle holders, too.

The charging options are great, with each row getting two USB-C ports and the front getting a wireless charging pad and 12-volt socket.

All of the controls and dials feel within easy reach and the 10.25-inch touchscreen multimedia system graphics are clear.

You can use it as a touchscreen or opt for the rotary dial but switching between the two was awkward for me. Especially, since the touchscreen function is disabled when you are using the wireless Apple CarPlay. This also has wired Android Auto, for those users. 

The amenities are practical throughout with a dark headliner, three-zone climate control and heated outboard seats and retractable sun-blinds in the middle row.

Good news for families because there are five top-tether points across the back rows and ISOFIX child seat mounts on the outboard seats in middle row, in case you need them.

You can fit a 0-4 rearward facing child seat and it shouldn’t impact on front passenger comfort. 

My six-year old found it super easy to get in and out of this car because of the 205mm ground clearance and wide door apertures. He enjoyed the high seating position, too, but was disappointed he couldn’t see out of the sunroof!

The boot space is a bit cramped with all three rows are in use at 209L but folding the third row opens up a more respectable 775L - perfect for the average family and its stuff!

The loading space is level, with the temporary spare tyre and clever storage compartments housed underneath. There is a retractable cargo blind and net, luggage anchor points and a 12-volt port, too. 

And, as always, I love a powered tailgate, which this has!

The GT SP diesel AWD is one of the premium models, sitting third from the top and will cost you $65,560, before on road costs.

However, its price tag positions it as the most expensive compared to its rivals. With the closest rival being the Kluger at $65,310 and the most affordable being the Santa Fe at $60,000.

You do get a stylish-looking package with lots of features for your cash, like heated front seats, heated rear outboard seats, a tilt and slide sunroof, and premium leather interior trim.

There's some great tech scattered throughout, too, like the 10.25-inch touchscreen multimedia system, wireless charging pad, USB-A ports in the third row, Bose Premium sound system with 10 speakers, wireless Apple CarPlay and wired Android Auto.