Mercedes-Benz GLB-Class vs Subaru Forester

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.

Don’t let the 7.5/10 make you think the Forester is not a good car. For the person who needs a practical, off-road-capable mid-size family SUV without too many complications, it’s extremely hard to look past this thing.

Is the STI Sport the best choice in the range? Not for most, given its higher price and relative lack of extra ability to go with it. A standard suspension tune and even a slightly less plush interior are probably a better call for most family needs, which means saving a fair bit at the purchase.

It’s also worth noting that the next generation Forester is coming soon, and with that could come a price hike. If a Forester is on the shopping list but the cost of living is starting to bite, now might be the time.

If the slightly sharper handling and red interior leather is of interest to you, the STI Sport might be worth a look, but just know the Forester’s best attributes can be had for less money in a much cheaper variant.

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.

The Forester is a pretty good-looking thing in this writer’s eyes, but its design hasn’t changed dramatically in the last few years.

The mid-size SUV looks equally at home on inner-city residential streets and in the middle of nowhere, even with the slightly ‘sported-up’ black trim of the STI version. And I do mean ‘slightly’.

Aside from the fact it looks a lot like the Forester 2.5i Sport of a few years ago (without the red bits), the STI Sport is perhaps ironically unadventurous. Even its alloy wheels don’t scream ‘sports’.

For all the SUVs with their respective brands’ performance badging (and not engineering) attached to them that bear more bark than bite, maybe it’s not such a bad thing Subaru has refrained from putting the Forester in full Tecnica uniform.

Inside, however, the black and red leather seems determined to distract from the fact that not much else has changed cabin-wise. It feels visually busier than it needs to, but still falls on the correct side of the restrained/garish line.

But there’s probably a reason the interior feels a little bit ‘classic Subie’ - if it works, it might pay to avoid making big changes.

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.
 

I've heard the Forester called a ‘jack of all trades, master of none’ kind of car, and I reckon that’s unfair. Aside from having Subaru’s venerable all-wheel drive at its disposal, the Forester is a supremely practical SUV - exactly what it needs to be given the reasons most people buy SUVs.

Okay, so the interface and tech is pretty old. If you’ve been in a Forester built in the last few years, there’s not a lot new to find.

There are some deliberately large buttons, the climate controls are still very classic and tactile, even the steering wheel buttons are pretty chunky.

If you’re not used to the amount of technology in new cars, Subaru has tried to make this as easy as possible to navigate.

I hate to sound like one of those ‘back in my day’ people, but in a lot of cases I’m finding myself preferring interior layouts and controls of a few years ago rather than post-2020 screens and ‘iPad’ style controls.

Newer Subarus have a rather large portrait centre screen, and even though it works fine, this one with the buttons below it is easier.

The instrument cluster being a pair of physical dials is also welcome, even if it means the digital display looks many years older than the car really is.

It’s also a spacious cabin, if not just physically then in feeling also. The huge sunroof and high-visibility glasshouse means plenty of light comes in and makes it feel roomy while also of course being easy to see out of (and therefore, manoeuvre).

Ergonomically, the Subie is sound. The seating position, aforementioned driver visibility, controls placement and space around each passenger is practical and well thought out, plus moving back into the second row doesn’t feel like a huge comfort downgrade.

Light in the second row is also good, the seats recline and the touch-point materials are like the front seats - comfy leather and a lack of scratchy plastics unless you go looking for them.

The second row can also be folded down (in a 60/40 split) from the boot with controls near the electric tailgate, which brings the boot space from 498 litres to 1060L, though Subaru says maximum space available is 1740L up to the ceiling.

At $48,640, before on-road costs, the Forester STI Sport AWD (to use its full name) has some strong competition - there are high-spec AWD hybrid Toyota RAV4 GXLs, powerful front-drive SUVs like the Ford Escape Vignale and Hyundai Tucson N-Line hybrid, or even variants of Euros like the VW Tiguan and Renault Koleos all within $1000 of the STI Sport’s sticker price.

But those looking for the practicality the mix of Subaru’s AWD, the space inside, and perhaps even the slightly older interior can provide, there’s a decent list of features for a car coming in at just a slice under ‘fifty large’.

The STI Sport AWD is based on the top-spec (petrol) Forester 2.5i-S, so it shares plenty of standard features - read on for those - but the key additions for this variant include a suspension tune by the eponymous performance division, a combination black and ‘Bordeaux Red’ interior leather with red contrast stitching, STI badging inside and out, dark grey 18-inch alloy wheels and black exterior trim for the grille, mirrors, roof rails and light surrounds.

From the Forester 2.5i-S, the STI Sport also brings along the existing leather seats and trim, with power-adjustable fronts which are also heated, plus the other main interior features like the 8.0-inch touchscreen for multimedia with wired Android Auto and Apple CarPlay, an eight-speaker Harman Kardon sound system with subwoofer and amp and a large electric sunroof.

It’s lacking some more modern features like wireless phone mirroring, wireless phone charging, USB-C ports or a fully digital driver display, but the latter of those is certainly no great loss.

On the outside, the existing self-levelling LED headlights with cornering response, LED DRLs and fog lights, privacy glass, roof rails and electric tailgate all also carry over from the 2.5i-S.

There are certainly rivals with more features, but they require trade-offs in other areas that might not appeal to Subaru customers.

The GLB35 is powered by an uprated version of the GLB250’s 2.0-litre turbo-petrol four-cylinder petrol engine, with the AMG-fettled version producing a more substantial 225kW of power from 5800-6100rpm and 400Nm of torque from 3000-4000rpm (up from 165kW/350Nm).

This version is also matched to an eight-speed dual-clutch automatic transmission as well as Mercedes-AMG’s front-biased but fully variable 4Matic all-wheel-drive system.

Thanks to this combination, the GLB35 can sprint from 0-100km/h in just 5.2 seconds with launch control enabled, while its electronically limited top speed is 250km/h.

The same drivetrain as is used in the 2.5i-S is found in the STI Sport AWD.

No prizes for anyone who guessed it’s a 2.5-litre flat-four engine, but some might be disappointed to know that means no turbocharging and no sporty transmission - the STI Sport still outputs 136kW and 239Nm via a continuously variable transmission (CVT).

Subaru’s ever-present ‘symmetrical’ all-wheel drive system is, of course, here in the Forester too, but the brand’s relatively recent foray into hybrid drivetrains was given a miss for this version.

The GLB35’s fuel consumption on the combined-cycle test (ADR 81/02) is 8.3L per 100km, while its carbon dioxide emissions are 186 grams per km. All things considered, both claims are pretty decent.

In our real-world testing, though, we averaged a high 14.1L/100km over 75km of driving split between highways and country roads, so not your typical mix, then. A heavy right foot also played into that result, so expect a better return after a regular run.

For reference, the GLB35’s 60L fuel tank can be filled up with 98RON petrol at minimum.

Subaru claims a 7.4L/100km combined cycle (urban/extra-urban) fuel consumption figure for the STI Sport AWD, and while we’ve seen tests come close to that in other variants of the Forester with the same drivetrain, inner-city life can be a detriment to the Forester’s drinking habits.

On a test loop which was fairly unsympathetic to fuel efficiency, the Forester’s trip computer reported a 10.2L/100km figure, though a commute from inner-Melbourne to the CBD saw the digits nudge 13.0.

Historically, highway driving has been better for the Forester, and the STI Sport should be no different - plus its 63-litre fuel tank (able to run on 91 RON) should mean if you can approach Subaru’s claimed fuel consumption figure, you could theoretically find yourself driving more than 800km on a single tank.

Don’t let the GLB35’s family friendliness fool you, this is an SUV that can get up and go.

The engine’s extra power and torque over the GLB250 are immediately felt behind the wheel, with the GLB35 accelerating with the vigour of an all-wheel-drive hot hatch, which makes sense given their similar claims.

And if you have one of the sportier drive modes engaged, the booming noise generated is also special – even if a lot of it is of the artificial variety, pumped into the cabin to make occupants feel like things are getting serious.

What is genuine, though, is the well-rounded transmission, which is characteristically quick with its upshifts. At the same time, it’s also relatively smooth, even at low speed, which has proven to be a challenge for dual-clutch units over time, but not here.

To earn the AMG badge, the GLB35 goes even further with other mechanical upgrades, including sports tunes for the suspension and steering.

Specifically, the GLB35’s independent suspension set-up not only consists of MacPherson-strut front and trailing-link rear axles with adaptive dampers, but also introduces new steering knuckles, transverse control arms on the front axle, and a stiffened subframe.

The resulting ride is actually quite good. Yes, the extra firmness over the GLB250 is noticeable – particularly in the sportier drive modes that stiffen the adaptive dampers all the way – but it’s by no means a deal-breaker.

That said, it’s worth noting our test vehicle was fitted with the optional 21-inch alloy wheels ($1990), so the GLB35’s like to ride even better on its standard package.

This is remarkable considering the handling improvements made, with the GLB35 managing body roll and pitch better than the GLB250 when pushing hard into and around corners, coming out of which grip is plentiful thanks to the all-wheel-drive system.

Thankfully, the standard-fit high-performance braking package consisting of 350mm front and 330mm rear discs with four- and one-piston callipers respectively helped it wash speed away with ease when attacking the twisty stuff with intent, even with 1857kg (kerb) to deal with.

Also on hand is electric power steering, which is speed-sensitive and has a variable ratio in the GLB35. Basically, it’s quicker when you want it to be, remaining on the lighter side in hand until you engage one of the sportier drive modes and weight is increased markedly.

Like much of the Forester STI, the driving experience is heavily borrowed from some tried and true Subaru characteristics.

That naturally aspirated flat-four engine, though underwhelming on paper, gets the job done without much fuss. In fact, it sometimes feels peppier than it should given its outputs.

Its 'S/I' (Sport or Intelligent) drive mode selector is there to adjust acceleration style, but it doesn’t make an enormous difference.

Yes, it could do with more torque, but the engine doesn’t struggle and only starts to sound laboured at high revs during the kind of acceleration you’d need for seconds at a time.

The sound of a CVT whirring away isn’t exactly auditory bliss, nor does it make for engaging acceleration.

But it’s relatively quiet under regular load below highway speed and, as long as the road isn’t too coarse, NVH is generally good in the Forester.

Road, wind and engine noise are certainly present in certain circumstances, but they’re not intrusive until you get to higher speeds.

At those high speeds is where you might notice one of the most significant changes to the STI version of the Forester - the dampers have been retuned by STI, for what Subaru hopes is a “sharper, more responsive driving experience”.

It’s hard to seriously call the Forester sharp - it’s a mid-size family SUV with enough clearance to go light off-roading - but the STI Sport holds up well for what it is.

The Forester driving experience was already likeable and easy, and in terms of cornering and handling bumpy rural (or even just bumpy urban) roads, the suspension keeps things under control without feeling too stiff.

Its body doesn’t roll as much as you might expect when cornering, but given STI’s engineers focused their efforts on the dampers, its a good thing the Forester doesn’t either waft or thud when presented with big sharp bumps, nor does it vibrate and rattle over constant rough surfaces.

Of course, it’s also got 'X Mode' controls for different surfaces like snow, dirt and mud, making it a pretty handy companion for outdoor adventuring or camping trips in regions where the weather gets a bit unpredictable. If you’ve ever tried to get a front-wheel drive hatchback out of a muddy hillside campsite…

Essentially, the Forester is the kind of SUV that, if you wanted to, you could have a medium amount of fun with on a twisty road before taking it down a particularly rough, unsealed or muddy trail, then later hand the keys to your grandma knowing she’d be able to handle everything about the driving experience, too.

The Forester holds a maximum five-star ANCAP rating from assessment in 2019, which sounds outdated but arguably the most important aspects of the ANCAP testing are the crash protection, for which the Forester scored highly - an extremely good 94 per cent for adult occupant protection and 86 per cent for child occupant protection.

Seven airbags including dual frontal, side chest, curtain airbags and a driver knee airbag keep occupants protected, while Subaru notes the engine’s low-centred nature means it’s designed to slip under rather than into the cabin cell in case of a frontal collision.

Its active safety systems have been kept up to date, with functions like lane-keep assist, driver monitoring, automatic reverse braking and the help of Subaru’s ‘EyeSight’ monitoring system are all welcome additions, particularly since they’re not as intrusive as some rivals.

The lane-keep assist, for example, only beeps (relatively calmly) and intervenes when the Forester actually approaches the lane edge, and the driver monitoring and speed warning systems don’t chime or give warnings unless something is actually going wrong.

Like the multimedia and interior layout, the active safety is one area where the most recent previous generation of common features seems to be better than those many manufacturers are now implementing.

As with all Mercedes-AMG models, the GLB35 comes with a five-year/unlimited-kilometre warranty, which currently sets the standard for the premium market. It also comes with five years of roadside assistance.

The GLB35’s service intervals are long, at every 12 months or 25,000km (whichever comes first). Better yet, it’s available with a three-year/75,000km capped-price servicing plan, but it costs $2750, with the third visit alone incurring a $1300 charge.

Subaru’s five-year/unlimited kilometre warranty is now considered the minimum par-for-course coverage for a mainstream new car in Australia, while some rivals are offering seven-, eight- or even 10-year warranties (though the longer one are sometimes conditional).

Subaru also offers 12 months of roadside assistance, though this is also often offered in similar lengths to warranties by competitors.

Servicing intervals for the Forester are every 12,500km or 12 months, with the first of five capped price services (aside from a free one-month check-up) costing $370.91 and the most expensive (fourth) costing $888.62.

A $1387.25 three-year service contract or a $2674.64 five-year plan are on offer.