Mercedes-Benz GLA-Class vs Subaru Forester

What's the difference?

With Mercedes-Benz’s vast number of SUVs, there is room for an urban luxury crossover niche, and the GLA delivers in spades.

Indeed, in 250 4Matic guise, it is that rare thing – a high-riding hatch with dynamics to shame most dedicated pocket-rockets. It really is a hoot if you find the right road, regardless of weather conditions. The Benz has towering talent.

However, even without desirable options like adaptive dampers and a full suite of driver-assist safety technology, the GLA is expensive, does not quite carry off the price tag from an interior quality point of view, and struggles to maintain the degree of comfort and refinement expected from a Mercedes – with or without the $3K necessary to score adaptive dampers.

Still, especially because of the way the GLA looks, goes, stops and steers, if you can afford it, you’ll be rewarded. There’s never been a more rounded GLA.

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.

Looking like a mini-me GLC, today's GLA trades some of its predecessor’s edgier design elements like the slammed roof and exaggerated broad-shouldered stance for a more amorphous if elegant appearance. Even with the cliché plastic cladding around the squared-off wheel arches, it’s still a looker.

The net result is arguably the most attractive of all the MFA2 A-Class offshoots. It sits well within the Mercedes hierarchy of SUVs, bringing a swoopy coupe-like silhouette compared to the ultra-upright GLB.

Along with being 30mm wider, it’s also visibly taller than before, with a handy 213mm of ground clearance compared to just 157mm last time around. And the wheelbase has been stretched to the benefit of rear-passenger room – a bugbear of the old GLA. That's progress.

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.

Compared to before, the 2021 GLA is some 122mm taller, so ushers in a higher hip point for loftier seating – reducing that jumped-up hatch feel. Headroom improves obviously, as does rear legroom, a corollary of a 30mm wheelbase stretch (to 2729mm).

Wide apertures also make entry into and out of the German-built GLA child's play, though the solid heft of their doors is serious business at this end of the segment, very satisfyingly Teutonic and totally on-brand. This is something you won’t enjoy in a Subaru XV.

Then you s-c-r-a-p-e the underside of the front doors on the pavement literally every time you swing it to get out, and wonder whether Mercedes engineers have ever been to Australia. This fail drove us spare. Heaven help the GLAs in towns and cities with bluestone sidewalks. Maybe all that extra AMG packaging is the culprit.

Still, most of the other basics are spot-on and can’t really be faulted; cosy yet spacious for four adults – especially up front, ample vision, an excellent driving position aided by heaps of seat and steering wheel adjustability, cosseting front sports buckets that you just sink into, torrents of ventilation from those delectable turbine vents and stacks of storage. Collectively they make the GLA a welcoming, opulent place to travel in. Only the hapless fifth occupant squished between the outboard rear-seat passengers might think otherwise. But nobody buys this Benz for carting people around. That's the GLB's job.

Several years ago, Daimler poached a senior Audi designer and since then Mercedes’ dashboards have morphed into a multi-coloured multimedia diorama of touchscreen technology that threatens to completely take over the universe. Choose the right combination of colours and lighting and it's like your very own White Night on wheels. Starting with 2018’s A-Class, the striking, spangly MBUX system that underpins all this has come to be widely admired and imitated. For aesthetics anyway, with its vivid hues, panoramic displays and simple, tiled applications, it’s been a real trip.

Anyway, back to reality. From a tactility and functionality point of view, there’s still work to be done.

Access to the multimedia (including our GLA's banging optional audio system) and car settings areas is possible via a mildly fiddly finger-pad arrangement down forward in the centre console, or smaller yet much more annoying thumb sensor tabs on the wheel spokes. These are not easy to modulate on the move. Additionally, their menus can be confusing to navigate through and sometimes counterintuitive in operation. Mercedes obviously realises this as a quick-guide pamphlet is provided on old-fashioned cardboard paper. How quaint.

Eventually all areas can be mastered over time, but the functionality is complicated and may overwhelm the not-so-tech savvy. Additionally, the ‘Hey, Mercedes!’ voice control is impressive for getting MBUX to perform basic multimedia and vehicle settings-related changes, but it too-often erratic, unreliable and ultimately frustrating for more complicated commands. Perhaps elocution lessons on behalf of the operator may help.

But not as much as the profound disappointment we endure from the cheapness of some of the materials, the wincing cellophane-like sounds when pressing on some of the surfaces such as the door cards, or that emanate after a particularly bumpy section of bad roads. Sheeny reflections and hard textures in a car optioned with extras that total up to nearly $82,500 just don’t cut it.  

At least in this latest-gen GLA, the rear seat area seems much improved over the previous models, with more space, comfy and supportive seating (remember ours featured the $607 sliding function that ought to be standard) and a reclining backrest. All amenities are present, with deep pockets, fresh air from twin vent outlets, reading lights and thoughtfully placed armrests – but, again, the latter’s extendable cupholders feel brittle and cheap.

Further back, the 435-litre cargo area is sufficiently sized and practical for smaller family use (at last), aided by a 40/20/40 backrest fold and that slide-able cushion to extend capacity further. There is no spare wheel, but a tyre inflation kit is fitted in lieu.

Overall, then, better than before, with that fundamental rock-solid heft, luxurious aura and alluring premium-car aroma. The dazzling MBUX screen-related visuals, too, are endlessly entertaining to explore when the vehicle is not moving, but the GLA’s cabin is still not quite up to Mercedes’ reputation for exacting over-engineered excellence.

Or even to the standards of some mainstream alternatives.

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.

Mounted transversely, Mercedes’ M260 1991cc 2.0-litre four-cylinder petrol engine features a twin-cam, 16-valve design, a twin-scroll turbocharger and variable-valve timing, to help deliver 165kW of power at 5500rpm and 350Nm of torque at a low 1800rpm. With an impressive 97.2kW per tonne, it can hit 100km/h in 6.7 seconds, on the way to a 240km/h top speed.

All four wheels are driven by an eight-speed dual-clutch transmission (DCT), though most of the torque at lower speeds or during reduced throttle loads is delivered to the front wheels until extra traction is required out back. The gearbox is one of the very best of its type we’ve experienced – seamless, strong and largely lag-free.

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.

Weighing in at 1668kg (kerb), and with a bluff nose and high ground clearance also not helping, we didn’t expect great fuel economy, particularly given how hard and fast the GLA 250’s performance bandwidth is. It’s tempting to just blast your way from point A to point B.

However, at the pump we averaged 9.8 litres per 100km, which isn’t too bad at all considering the available muscle. The official figure is 7.5L/100km, for a carbon dioxide emissions rating of 170 grams per kilometre. With a 51-litre fuel tank, the theoretical range is around 680km.

Note that the GLA 250 requires 95 RON premium unleaded petrol as a 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.

A soaring 2.0-litre turbo engine application, this is a slick, stirring and robust performer that can also do efficiency as effortlessly as launch the GLA 250 4Matic towards the horizon. Let’s not mince our words. This is a fast and fiery mover.

Three drive modes – Eco, Comfort and Sport – provide a wide spectrum of acceleration and throttle responses, and all deliver precisely what you’d expect. Eco’s fine for pottering around town smoothly and serenely; Sport morphs into a searing and seamless speed demon; and the default Comfort sits somewhere in the middle as the best of both worlds. There really is no faulting Mercedes’ M260 masterpiece.

The DCT also happens to be one of the better dual clutch autos, avoiding the lag and clunkiness pitfalls usually associated with this sort of gearbox. It’s even comparatively smooth off the line on hills. Ours came with the optional handy set of manual-mode paddle shifters, adding a welcome level of interactivity autos tend to overlook. Too bad Mercedes persists with that fiddly column lever that is forever prone to knocking the car out of drive. Even after 15 years, it's still so annoying.

What all this means for the urban driver is strong acceleration for flitting in and out of traffic gaps, as well as incredibly instantaneous point-to-point responses for commanding manoeuvrability, thanks to ultra-eager steering and assisted by outstanding brakes.

With struts up front and a multi-link rear end as standard, the GLA 250’s chassis, too, is a transformative for what is essentially a high-riding hatchback – but only if your pockets are deep enough.

Fitted with that near-$3K AMG Exclusive Package that includes adaptive dampers, our Benz displayed a definite hot-hatch attitude that really would make it the darling of Golf GTI owners who’ve outgrown their rides but not their girl/boyracer desires. Superb handling and hunkered-down roadholding really do make this the driver’s premium compact crossover. You can pretty much point and shoot this Merc as you might a Golf R, and likewise in most weather conditions thanks to all that reassuring tenacious grip.

Plus, if you’re put off by the hard ride in Sport, the Individual mode allows the driver to engage the soft damper mode while the engine and steering retain the hardcore settings. It’s a win-win situation – as long as you can stretch to that AMG Exclusive pack. We strongly recommend it, given the balance between ultimate high-speed control and comfort.

However, while this is all good news for rural and country folk seeking hot crossover fun, back around town, poor urban road conditions can reveal a flaw in the chassis’ ability to properly smother bumps and ruts. It’s the small frequency stuff that seems to transmit through, never really settling down.

The result is a jittery ride, that may somewhat undermine the GLA’s upmarket sheen. There’s also a fair degree of road noise coming through. Perhaps sticking with the 19-inch alloys instead of those lovely 20-inch rims is the solution here.

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.

Unlike many luxury brands that persist with a sub-par three-year warranty, Mercedes-Benz offers a five-year/unlimited kilometre warranty.

Intervals are every year or 25,000km, with a capped price service plan starting at $550 for the first year, $750 for the second year and $1250 for the third year, totalling $2550. Alternatively, buyers can also choose a Service Plan, starting at $2050 for the first three years (saving $500 from the normal capped-price service plan), $2950 for four years and $3500 for five years.

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.