Volvo XC90 vs Mercedes-Benz G-Class

What's the difference?

The XC90 Recharge makes a lot of sense for a family with a couple of kids, who live and spend most of their time in the city and surrounding suburbs.

You’ll need access to a power point for charging and you’ll have to do it regularly to get the best out of this SUV, but in return you’ll get effortless and efficient driving, along with the practicality and prestige which comes with any XC90. 

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.

Cars are like dogs in that a year for them ages them more than one for us. So, this current-generation XC90 which came out in 2015 is getting on in age. Still, the XC90 is a design lesson in how to defy the aging process because the styling even now it appears modern and beautiful. It’s also big, tough, and prestigious looking which is how the flagship SUV in a premium brand should be.

The Thunder Grey paint my test car wore (see the images) is an optional hue, and it suited the battleship size and personality of the XC90. The enormous 22-inch five -spoke Black Diamond Cut alloy wheels were standard and filled up those giant arches nicely.

Maybe it’s the minimalist styling which has kept the XC90 looking cutting edge, because even the interior looks like the inside of a very expensive psychiatrist’s office with those leather seats and the brushed aluminium trim.

The vertical display is still impressive even in 2021, and while fully digital instrument clusters are in everything these days the XC90’s has a prestigious look and matches the rest of the cabin in its colours and fonts.

As for the XC90’s dimensions, it’s 4953mm long, 2008mm wide with the mirrors folded and 1776mm tall to the top of its shark fin antenna.

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.

Clever interior packaging means the XC90 Recharge is more practical than many large SUVs. There are flashes of utilitarian brilliance everywhere from the children’s booster seat which pops out of the centre of the second row (see the images) to the way the XC90 can crouch down like an elephant to make it easier to load stuff into the boot.

The XC90 Recharge is a seven-seater, and like all SUVs with third rows those seats in the very back only offer enough room for kids. The second row is spacious even for me at 191cm tall with plenty of leg- and headroom. Up front as you’d expect has good head-, elbow- and shoulder room.

Cabin storage is good with two cup holders in each row (the third also has containers under the armrests) and there are large door pockets, a decent sized centre console box and a net pocket in the front passenger footwell.

The cargo capacity with all seats being used is 291 litres and with the third row folded flat you’ll have 651 litres of boot space.

Storage for the charging cable could be better. The cable comes in a stylish canvas bag that sits in the boot, but other plug-in hybrids I’ve driven do a better job of providing a storage box for the cable that’s out of the way of your regular cargo.  

The gesture control tailgate works with a foot swish under the rear of the car and the proximity key means you can lock and unlock the vehicle by touching the door handle.

The cargo area is filled with hooks for bags and a lift-up divider to hold items in place.

Four-zone climate control, four USB ports (two in the front and two in the second row) dark tinted rear windows and sun blinds top off what is a very practical, family SUV.

My family is small – there’s just three of us – and so the XC90 was more than what we needed. That said, we found a way to fill it with holiday gear, shopping, even a mini trampoline.

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.

Okay, you're laying down a quarter of a million bucks ($247,329 before on-road costs) and it's fair to expect some serious tech and standard equipment to keep you feeling warm and fuzzy after you're finished impressing friends and family with the G 63's howling acceleration.

For a start, there's a bunch of leading-edge safety tech on-board (detailed in the safety section below), and as expected that substantial cost-of-entry brings an extensive list of luxury features.

We've touched on the twin 12.3-inch 'Widescreen Cockpit', and available media includes digital radio and TV tuner, internet connectivity and 3D nav (with dynamic route guidance), as well as smartphone integration with Apple CarPlay and Android Auto.

Audio is a thumping 15-speaker, and 590-watt Burmester surround sound system, and the ambient lighting set-up offers a choice of 64 colours.

Also included are 'Multibeam' LED headlights, 'AMG Ride Control' adaptive damping, a 'Parking Package' with 'Active Parking Assist' and 360 camera, a sliding glass sunroof (with tilt function), the selectable AMG sports exhaust system, keyless entry and start, the AMG Performance steering wheel (trimmed in nappa leather), and 21-inch AMG '5-Twin spoke' alloy wheels.

Then there are the three 100 per cent differential locks (plus an 'off-road information centre'), electronically adjustable front seats (ventilated front and heated front and outer rear), steering column and mirrors (with memory function), three-zone climate control, nappa leather upholstery, a leather-finished dashboard with open-pore ash wood trim, a 'Dinamica' microfibre roof liner, and an AMG-specific IWC design analogue clock. Plus, the 'Dynamic Select' system enables a choice of pre-set driving profiles or individual settings.

The optional 'Exclusive Interior Plus Package' ($10,300) fitted to 'our' car adds deluxe nappa hide on the dashboard, door centre panels and grab handle, as well as a diamond quilted treatment on the seat centres, a black 'Dinamica' roof liner, velour floor mats (with edging in nappa leather), a frameless interior mirror and air vents in 'Silvershadow'.

On top of that the test vehicle was optioned with the 'Night Package' ($5900) detailed in the Design section, and Designo 'diamond white bright' paint ($5900) for a manufacturer's recommended list price (MRLP) of $269,429.

That puts the G 63 in the same price and equipment ballpark as the supercharged V8 Range Rover Autobiography ($268,900), twin-turbo V8 Porsche Cayenne Turbo ($239,400), and its Mercedes-AMG GLS 63 sibling ($221,729), powered by a version of the 5.5-litre twin-turbo V8 used in the first-gen G 63.

An impressive trio of alternatives, but in reality the idiosyncratic G 63 doesn't have any direct competitors, and for those who give in to the pull of its powerful tractor beams value-for-money becomes a uniquely personal concept.

The XC90 Recharge (Volvo calls it this, so for simplicity let's do it, too) is an all-wheel drive SUV with a 2.0-litre four-cylinder supercharged and turbo-charged engine, producing 246kW and 440Nm, plus an electric motor which adds 65kW and 240Nm.

Shifting gears is an eight-speed automatic and acceleration is rapid at 5.5 seconds for the 0-100km/h sprint.

All XC90s have a 2400kg braked towing capacity.

The 11.6kWh lithium ion battery is located under the floor in a tunnel which runs down the centre of the car covered by the centre console and hump in the footwell of the second row.

If you didn’t realise, this is the type of hybrid you need to plug into a power source to charge the batteries. A power point is fine but a wall unit is faster.  If you don’t plug in, the battery will only get tiny whiff of charge from the regenerative braking and that won’t be enough to put a tiny dent in your fuel consumption.

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.

Volvo says that after a combination of urban and open roads the XC 90 Recharge should use 2.1L/100km. That’s incredible - we’re talking about a five-metre long, 2.2-tonne, seven-seat SUV here.

In my testing the fuel economy varied greatly depending on how and where I drove the XC90.

There was a week where I only drove up to 15km a day doing the day care drop-offs, the shopping, popping into work in the CBD, but all within 10km of my home. With 35km of electric range I found that I only had to charge the XC90 every second day to keep it topped up to full and, according to the trip computer, after 55km of travel I was using 1.9L/100km.

I recharged using the outdoor power point in my driveway and using this method would take just less than five hours to fully charge the battery from empty. A wall unit or fast charger will top the battery up much quicker.

The charging cable is long at more than 3m, and the flap on the XC90 is located on the front left wheel guard.

If you don’t have a way of charging the XC90 regularly then fuel consumption will go up, obviously.

This happened when our family took a break down the coast and the holiday house we stayed at didn’t have a power point within reach. So, while we had been charging the car regularly in the week beforehand with a few long trips thrown in on motorways, for the four days we were away I didn’t plug it in at all.

After 598.4km I filled it back to full at the petrol pump with 46.13 litres of premium unleaded. That comes to 7.7L/100km, which is still great fuel economy given that the last 200km would have been without charging.

The lesson is the XC90 Recharge is most fuel efficient on short suburban and city trips with daily or every second-day charging.  

A larger capacity battery would add more range and make this plug-in hybrid SUV better suited to people who live further out of the city and do more motorway miles.

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.

We put more than 700km on the clock of the XC90 Recharge during the three weeks it stayed with my family, covering a lot of motorway miles, country roads and a stack of urban usage, too.

Now without sounding like one of the haters who hated on me the last time I test-drove a Volvo hybrid, you will need to charge the XC90 Recharge all the time if you want to get not only the best fuel economy, but also the best performance from the SUV, too.

There’s the extra oomph from the motor, when you have enough charge in the ‘tank’ but also the serene and smooth pleasure of driving in electric mode on city and urban trips.

That tranquil electric driving experience feels kind of at odds with a large SUV at first, but having now tested a few big family plug-in hybrids and EVs I can tell you it’s a more enjoyable one.

Movement is not only smooth, but the electric grunt provides a feeling of control with an instant response which I found reassuring in traffic and at intersections.

The transition from electric motor to petrol engine is almost seamless. Volvo and Toyota are only a couple of the few brands which seemed to have achieved this.

The XC90 is large and that presented a challenge when trying to pilot it into my narrow driveaway and in car parks, but light, accurate steering and excellent visibility with large windows and cameras galore helped there.

The auto parking feature works well even on the higgledy-piggledy streets in my neighbourhood.

Topping off an effortless driving experience is air suspension which provides a cushioned and composed ride, with great body control all while wearing those 22-inch wheels and low-profile rubber.

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.

The second-gen G 63 hasn't been assessed by ANCAP or Euro NCAP but its new electronic architecture brings the car up to speed on active safety tech, now incorporating 'Distronic' cruise control with 'Active Distance Assist', 'Active Brake Assist', AEB (forward and reverse), 'Active Lane Keeping Assist', 'Blind Spot Assist', 'Adaptive High-Beam Assist', tyre pressure monitoring, and 'Traffic Sign Assist'. Plus, the 'Pre-Safe' system prepares the vehicle and occupants in the face of an inevitable collision.

And once that impact has occurred, you're protected by nine airbags, including rear seat airbags, full-length curtains and a driver's knee bag.

There are three top tether points for child restraints/seats across the back seat, with ISOFIX anchors in the two outer positions.

The XC90 is covered by a five-year, unlimited kilometre warranty. Two service plans are offered: three years for $1500 and five years for $2500.

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.