Mercedes-Benz G63 vs Subaru Crosstrek

What's the difference?

The Mercedes-AMG G 63 isn't for shrinking violets. It's bold, fast, and loud, and in second-generation form massively improved dynamically and technically. It's a lot of money, but there's a lot to love, and here's hoping it stays around for decades to come.

It’s not perfect, in fact, the Crosstrek has a few factors that would probably turn off groups of buyers at a time, but Subaru knows its audience isn’t ‘everyone’.

Subaru customers aren’t trying to get their fuel efficiency below 4.5L/100km, nor find the car with the most luxurious interior. They’re looking for a practical Jack or Jill of all trades, which the Crosstrek does rather well for its segment.

Few small SUVs are as agreeable on rough and unsealed roads without sacrificing suburban comfort, while its features list is practical and provides plenty for the money.

Unfortunately, the hybrid system is a little underwhelming, and if it’s the main draw of the Crosstrek for you, it could be worth considering the less expensive ($38,590) Hybrid L or even a hybrid rival like the Toyota Corolla Cross or Mitsubishi Eclipse Cross.

If the all-round ability of the Crosstrek is the draw, however, the non-hybrid L is still an excellent offering and doesn’t use a lot more fuel than the Hybrid - plus it’s several grand cheaper at $41,490.

The Crosstrek is great for active people who need a bit of flexibility in one car but for the vast majority, the hybrid probably isn’t the sweet spot in the range. However, that won’t hinder the Crosstrek as an overall model, its popularity is already proven, and the option of a Hybrid puts Subaru a little closer to the eventual necessity of electrification.

The original (W460) G-Glass, then known as the G-Wagen (or Geländewagen for cross-country vehicle), was launched in 1979 as an ultra-capable off-roader, soon favoured by armies the world over. Arriving here in 1982, its distinctive, slab-sided form remained unchanged over the best part of four decades.

At close to 4.8m nose-to-tail, more than 1.8m across, and a bit over 1.9m tall, the G 63 is now longer (+110mm), wider (+106mm), and fractionally lower overall (-13mm), but still pulls off a convincing impersonation of a bread box.

Merc-AMG confidently quotes a drag coefficient (Cd) of 0.55 for the G 63, which isn't as bad as a brick (around 2.0… I Googled it) although it is in the same league as a heavy truck.

But it's the car's unique, upright stance, complete with pumped wheelarches and old-school flat glass, that sets it apart and draws people in. Looking more like a take-no-prisoners, functional device than a luxury cruiser, I can assure you it attracts as many admiring looks and comments as a low-flying supercar wedge.

The new-gen G 63 features AMG's vertically slatted 'Panamericana' grille, and our test example was fitted with the optional 'Night Package' ($5900) adding a range of dark exterior details including tinted indicator lenses, dark tinted glass, black exterior mirror shells and spare wheel ring, other black trim pieces and painted areas, as well as 22-inch AMG forged alloy rims.

Also worth noting, Merc has retained the G-Class's solid metal door handles, complete with the mechanism's unmistakable 'click-clack' opening and closing sound. Nice touch.

Inside, the biggest change is the upgrade from a conventional dual-gauge instrument cluster and central media stack to a pair of 12.3-inch digital screens, forming a sleek widescreen display, and bringing the G 63 in line with other recent Merc offerings.

Similarly, the gearshift moves from a traditional console-mounted set-up to Merc's 'Direct Select' lever on the steering column (exactly where the indicator stalk is located in 90 per cent of right-hand drive cars).  And the standard flat-bottom, leather-trimmed 'AMG Performance' steering wheel is a racy addition.

Like the exterior door handles, another tip of the hat to the car's heritage is retention of the horizontal grab handle ahead of the front passenger on the dash above the glove box. Nice to have something to hold on to if the going gets rough.

Perhaps unsurprisingly, the new Crosstrek looks an awful lot like its a development of the Subaru XV.

Which, given the latter’s popularity, is a very good thing.

While there are a lot of similarities, especially when it comes to some of the more rugged elements, the Crosstrek still manages to look quite new.

It’s rugged without having too many ‘busy’ design elements and it even looks at home in inner-city suburbs. 

Of course, its raised body and cladding are mostly for practical reasons, but it gives the small SUV an adventurous aesthetic that separates it from city-focused rivals.

As essentially a high-riding development of the Impreza hatch, its size and proportions also make it look more like a ‘big car’ than a small SUV.

The G-Class has never been a particularly squeezy proposition for passengers or cargo, but an extra 40mm in the wheelbase adds even more breathing space.

Getting in is the first step, and it's a big one. At 183cm tall, in an athletic mood, I could grab the A-pillar and swing up into the driver's seat in one vaguely respectable movement.

But, those side steps aren't just for show, and at the end of a long day provide a handy staging camp between terra firma and the lofty pilot's chair.

Once on-board there's plenty of room up front, with adequate storage including a bin between the seats (now with a double door opening rather than a single hinged lid), a modest glove box, oddments space and two cupholders in the centre console, and bins with space for bottles in the doors.

There's a 12-volt power outlet in the front, second row and cargo area, while there are two USB ports in the centre console bin and a charging USB port in the second row.

In the back I could have donned a dusty Akubra and still had headroom to spare, with generous foot room, and a substantial gap between my knees and the driver's seat (set to my position).

A fold-down armrest incorporates a pair of cupholders (as well as a through-port to the cargo space for long items) and there are map pockets on the front seat backs as well as space for bottles in the doors. Two adjustable air vents in the rear of the front centre console, and another pair in the B-pillars also provide climate-controlled air to those in the rear.

With the rear seats upright boot volume is quoted at 454 litres (VDA); enough to easily swallow our three-piece hard suitcase set (35, 68 and 105 litres) or the CarsGuide pram, or a largest-suitcase-and-pram combo.

There are tie-down shackles in each corner of the floor, usefully bright lighting, a netted storage area on the passenger side (containing five fluorescent emergency vests), and folding the 60/40 split rear seat liberates even more space.

Unfortunately, gaining access to that load space is fraught with compromise. First, the single-piece rear door hinges vertically and opens from right to left. No problem when you've nosed into a shopping centre space, but not so great when you're parking nose-to-tail on the left-hand side of the road.

That means you typically have a small space between you and the car behind to get the door open, and when it is at 90 degrees, you're blocked from unloading things onto the footpath until you've shut the door.

As well as that, the door has a full-size spare (alloy) wheel and tyre attached to it. Good because a full-size spare is welcome, and bad because it makes the already bulky door even heavier.

Those keen on towing things will be pleased to hear the G 63 is rated to haul up to 3.5 tonnes of braked trailer and 750kg unbraked.

Practicality is pretty much a staple of Subaru as a brand, so it should be a huge surprise that it feels that way from the driver’s seat.

The interior doesn’t look futuristic, but it does look functional. 

For example, even though the centre of the dash is all screen - and we love buttons for climate controls around here - the controls for air conditioning and temperature are at least always present on the screen, no sub-menus needed.

The phone charger is large enough for even very tall phones (looking at you, Samsung Galaxy S20 Ultra, pictured), and it’s out of the way to minimise extra digital distraction.

The steering wheel’s buttons, while many, are all clear and simple, as is the iPad-like icon layout on the multimedia screen.

Storage in the front is miles ahead of the rear seats, a large central bin with two cupholders, a big glove box, and decent space for water bottles in the door cards. In the rear, two central cupholders in the armrest and a small space in the door.

But there is a decent amount of space for an adult to sit in the rear, even if the sides of the roof are a little close to the head. It’s a little like the front, where the seats are supportive and easy to adjust to a comfortable position.

Further back, the boot space is a relatively small 315 litres, though its slightly larger than the 291L the petrol versions come with - that extra space likely swallowed by a spare tyre in the petrol versions, as opposed to the smaller batteries taking up some space in the hybrids.

When you’re wearing a hybrid badge and you’re up against veterans in the field like Toyota with the Corolla Cross, you want to make sure you’re offering up something substantial.

At $45,090, before on-road costs, the Hybrid S tops the range and comes with a features list that screams it from the rooftops. Or the mountaintops. Or at least as far as the gravel tracks will take you towards the mountaintop.

From the outside, 18-inch wheels are the first indicator for the ‘S’ grade - note that hybrids don’t come with spare wheels, just repair kits - as well as body coloured door handles and black plastic trim and cladding, aside from the gloss mirror caps.

The door mirrors are heated and fold away when parked, while up top there’s a sunroof flanked by roof rails, with a styled spoiler at the rear.

Interestingly, there’s no power tailgate.

LED DRLs and headlights are automatic and are aided by steering responsive active cornering lamps, while the wipers are auto rain-sensing.

Inside, dual-zone climate control and heated front seats (the driver’s is eight-way power adjustable) for the cold - all seats are leather accented - while the steering wheel and shifter are also leather-wrapped.

Tech is covered off by the usual 11.6-inch portrait touchscreen centrepiece, with sat-nav, AM/FM and digital radio, wireless Android Auto and Apple CarPlay, USB-A and USB-C plugs (in the rear, too), a wireless phone charger, and a 10-speaker Harman Kardon sound system over the usual six-speaker set-up. There’s even an auxiliary audio input.

The driver display is a small 4.2-inch unit flanked by physical dials.

The G 63's 4.0-litre (M177) all-alloy V8 is closed deck design using direct-injection and a pair of twin-scroll turbos to produce 430kW at 6000rpm and no less than 850Nm from 2500-3500rpm. That's 10kW/90Nm more than the 5.5-litre twin-turbo V8 it replaces!

To improve throttle response and optimise efficiency, the turbos are located inside the engine's 'V', improving air flow and shortening the distance from the exhaust side to the turbos, and in turn, from the turbos to the inlet side.

And the housings on the twin-scroll turbos are divided into two parallel flow channels connecting with separate ducts in the exhaust manifold, allowing fine management of the exhaust gas coming in and pressure going out. Result is more torque and even better response times.

Drive goes to all four wheels via a new 'AMG Speedshift' nine-speed, dual-clutch auto (replacing the previous seven-speed auto transmission) with paddle shifters and a multiple downshift function which will go to the lowest ratio possible as you keep squeezing the shift paddle.

The 'AMG Performance 4Matic' all wheel drive system is front/rear biased 40/60 (50/50 in the previous model), although if you want to head off-highway the G 63 still features three 100 per cent diff locks and low-range off-road gear reduction.

This is perhaps the part of the review you’re most interested in - as well as the following sections on efficiency and maybe driving - if the ‘Hybrid’ part of the Crosstrek Hybrid S’ name brought you here.

Like its design and interior, the engine will be familiar to anyone who has owned or driven a relatively recent Subaru - a 2.0-litre flat-four petrol engine good for 110kW/196Nm - which means it makes a little less than the standard petrol variant’s 115kW.

However, the electric motor is capable of its own 12kW/66Nm outputs, though Subaru doesn’t supply a claimed total maximum for the whole powertrain.

Drive is transferred to all four wheels - it is a Subaru after all - via a seven-step continuously variable transmission (CVT).

Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 13.1L/100km, with the 4.0-litre, twin-turbo V8 emitting 299g/km of CO2 in the process.

Despite the fact cylinder management tech means the engine will run on four cylinders under light load, and start-stop (with 'glide mode') is standard, we managed 16.7L/100km (measured at the bowser) over a mix of city, suburban and freeway running. To be expected for such a big bus, especially one that constantly tempts you into squeezing the throttle just to hear the exhaust bellow.

Minimum fuel requirement is 98 RON premium unleaded, and you'll need 100 litres of it to fill the tank.

Subaru claims the Crosstrek Hybrid will sip 6.5L/100km on the combined cycle, which isn’t enough to blow anyone away, even when you take into account the extra fuel needed for permanent all-wheel drive. The AWD Corolla Cross Hybrid comes with a claimed 4.4L/100km.

Compare this to the 8.5L/100km reading the Crosstrek returned after our time with the car, mostly with a (somewhat unkind) mix of inner-city and semi-rural backroad driving, and it’s clear the Crosstrek isn’t one of the most frugal cars in its class.

More highway driving would certainly have lowered the figure - we’ve achieved 8.0-litres on previous testing with a non-hybrid Crosstrek - but perhaps being top of the charts for efficiency isn’t necessarily what Subaru buyers are looking for.

Of course, the Crosstrek Hybrid S employs a couple of features to avoid using fuel where it can be avoided, such as auto stop-start and its (relatively mild) electric system taking over when mostly coasting or the engine isn’t required.

Let's cut to the chase. The G 63's pure grunt overpowers its challenging aero profile to thrust this boom box on wheels from 0-100km/h in a claimed 4.5 seconds. And believe it or not, despite its greater length and width, it has enough power to punch a 240km/h hole in the air (maximum velocity is limited to 220km/h if you choose not to opt for the 'AMG Driver's Package').

The new electronic architecture brings with it the latest version of Merc's 'Dynamic Select' system with five driving modes adjusting the engine, transmission, suspension, steering and assistance systems right up to maximum attack Sport+ mode.

All 850Nm of peak torque is available between 2500-3500rpm and pinning the throttle anywhere in that band feels like lining up a runway and preparing to rotate for take-off.

The two-stage exhaust flap arrangement allows you to turn the noise up from growl to roar even at modest around town speeds, and the nine-speed transmission is sharp and positive, with the multiple downshift function (in manual mode) hilariously good fun.

The racy AMG sports seats are as grippy as they are comfortable, and the fat 295/40 Goodyear Eagle F1 rubber, wrapped around the optional 22-inch forged alloys, does a good job of keeping all that mass and momentum in control as the high riding G 63 careens around corners.

And speaking of mass, the job of hauling it from warp speed to rest sits with big ventilated discs all around (cross-drilled 400mm front/370mm rear), clamped by monster six piston calipers at the front and single piston at the back. They're progressive and reassuringly powerful.

So, the performance is as dramatic as ever, but when I think of previous Merc-AMG G-Class offerings, two main shortcomings come to mind... steering and ride.

The steering was like a laggy mouse, with a few beats separating input at the wheel from response at the front treads. And the damping came up short, with a bouncy ride par for the course.

Still sitting on a ladder-type frame, the new G's suspension was developed by Mercedes-Benz and Mercedes-AMG. And finally, it has a decent double-wishbone independent front-end, with a rigid axle at the rear and coil springs all around. Plus, a strut tower brace, Merc-AMG calls it a 'suspension bridge', now connects the front strut towers, increasing torsional rigidity.

Ride comfort, especially in the most compliant 'Ride Control' suspension setting and riding on the big 22s, is massively better. It's no limo. You'll still feel jittering over higher frequency imperfections. But it's way, way ahead of the first-gen version.

The steering system changes from a recirculating ball to rack and pinion, and is now variable ratio with electro-mechanical rather than purely hydraulic assistance. And it's also much improved. We're not talking about a Lotus Elise-style connection with the road, but the steering is clearly more predictable and responsive.

One thing that hasn't changed is an ocean liner-worthy, 13.6m turning circle. You'll need to plan ahead for U-turns and reverse parks, but enough parking cameras (including surround view) to please Cecil B DeMille are on hand to help.

It's like a whole new world with a familiar cover wrapped around a markedly improved package. But (there must be a but) visibility is still compromised by thick window and door pillars, and despite the new dash layout ergonomic efficiency is patchy, with some switches and knobs located in relatively awkward positions.

As mentioned earlier the G 63 features three 100 per cent diff locks and low-range off-road gear reduction. But forget breakover angles and wading depths. This 4x4 seeing off-road action is as likely as an Abbott 2.0 prime ministership.

Suffice it to say, this car wears the 'Schöckl' badge at the base of its B-pillar. And in case you were wondering, Schöckl is a 1445m mountain in Graz, the Austrian city where the G-Class is built (and big Arnie Schwarzenegger was born!).

In the second-gen G-Class's development, prototypes covered roughly 2000km over a five kay trail including gradients of up to 60 per cent and lateral inclines up to 40 per cent. So, despite its irrelevance, the off-highway box is ticked.

Two things stand out after a short stint behind the wheel of the Crosstrek Hybrid, and both become more cemented over time.

The first is that the ‘Hybrid’ part of the ‘Crosstrek Hybrid S’ isn’t quite as prominent in its real-world impact as it is in its name.

The 110kW engine doesn’t feel like it’s being massively helped along by any electric assistance, and the electric motor is very rarely doing the work by itself, as you’d find in any hybrid from Toyota or Honda.

That’s a shame, because the Crosstrek could do with a little extra oomph, if not for getting up to speed then for avoiding thrashy engine sounds under acceleration.

The CVT, while not necessarily detrimental to its performance, doesn’t help with that.

But balancing that out is a chassis and platform that’s engaging and predictable - and that’s predictable as a good thing - making the Crosstrek pleasant to pilot.

Its controls like steering and braking are nicely weighted for low speeds, commuting, and for more spirited driving, while the suspension and chassis handles surfaces from smooth suburban roads, to city tram tracks, to unsealed roads with ease, soaking up bumps and shakes nicely.

If you’re noticing a theme in this review, it’s that Subaru doesn’t seem to be chasing any ‘best at’ metrics in favour of giving the Crosstrek the ability to do a range of different driving and being at least satisfactory in any given area.

As the range-topper, the Subaru Hybrid S comes with the lot in terms of safety. 

And even though it hasn’t been tested by ANCAP yet, it’d be a shock if its score was anything less than the maximum five stars.

It’s what the XV scored in 2017, and the brand hasn’t missed out on full marks since the Impreza and Foresters of the early 2000s.

Nine airbags include dual front, dual front side, dual curtain, driver's knee, far side, and front passenger seat cushion airbags, plus Subaru’s 'EyeSight' safety suite does the work in crash prevention.

On top of the standard safety features you’d expect from any new car like electronic stability control and ABS, there’s a ‘Pedestrian alert system’, emergency lane keep assist with departure warning and prevention, a ‘Driver Monitoring System’ that includes drowsiness and distraction warnings, sensors and monitors for blind spots and rear cross-traffic, and of course parking sensors.

Some less common features of EyeSight include ‘Lead Vehicle Start Alert’, ‘Pre-Collision Braking System’, ‘Pre-Collision Throttle Management’, ‘Intelligent Speed Limiter’ as well as ‘Speed Sign Recognition’ and ‘Brake Light Recognition’.

Specific to the S, is a surround-view parking camera, high beam assist, plus front- and side-view monitors to help avoid kerbing wheels or bumping towbars.

It’s all fairly well implemented in the Crosstrek, though some of its chimes can be a bit much - the driver distraction alert can mistake a quick climate control change at the lights for a proper lapse of focus, while an alert for approaching speed and red light cameras comes without any indication of what the noise is for.

Mercedes-Benz (and by extension Mercedes-AMG) offers a three-year/unlimited km warranty with 24 hour 'Road Care' emergency roadside assistance provide for three years.

Servicing is recommended every 12 months/20,000km and a capped price servicing plan is available at Silver and Platinum levels for up to five years/100,000km.

The Crosstrek is covered by Subaru’s five-year/unlimited kilometre warranty, with servicing intervals coming up every 12 months or 15,000km under Subaru’s five-year capped-price servicing.

Subaru also adds 12 months of free roadside assistance.

This is all fairly standard in the industry, though some brands like Kia and MG offer seven-year warranties, or there’s Mitsubishi with a 10-year warranty (even if it requires certain conditions to be met during the decade).