Mercedes-Benz G-Class vs Range Rover Sport

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.

Range Rover proudly calls it its “most dynamic” model ever, and based on our first experience that’s most definitely true. Its ability to be genuinely exciting to drive on a race track is nothing short of remarkable for a brand whose history is all about off-road prowess.

On the road it shines just as brightly, with its potent engine and state-of-the-art suspension system working in unison to make for a stunningly dynamic large and luxurious SUV. And then, if you need to cut across a field or scramble up a slippery hill, it will do that too.

Range Rover’s claims of ‘breadth of capability’ is apt but arguably an understatement. I’d stop short of calling the Sport SV the obvious class-leader in the high-end, high-performance SUV market because it’s up against some seriously impressive rivals, but the Range Rover offers a broader range of ability than any of its competitors.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

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.

Range Rover is a brand synonymous with big, imposing and off-road capable SUVs, not dynamic and sporty vehicles. But in recent years the Evoque and Velar have added a new layer of style and a sleekness to the brand’s reputation.

The latest generation Sport is still a big and imposing two-tonne SUV, but it’s also definitely sportier to look at and the SV changes only add to that.

It only takes a moment looking at it and it’s clear this is an SUV that means business. The 23-inch wheels fill out the guards, the air-suspension can lower the body to the ground and the aerodynamic package, including the front splitter, make for a purposeful look.

The carbon-fibre bonnet can be finished with the centre section exposed, showing off the weave of the fibres, which is a nice touch, although fake vents on the bonnet and front fenders are a bit disappointing.

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.

There are two stand-out features in the cabin, beyond the standard high-level of luxury you expect from a Range Rover Sport. 

The first is the SV-specific steering wheel with illuminated paddles, which feels solid in your hands. But the second is by far the most interesting, the so-called Body and Soul Seats (BASS), which Range Rover has developed in conjunction with Coventry University.

Available with either genuine leather or ‘ultra fabric’ and a 3D-print knit trim, the seats look great on the outside but it’s what’s inside them that’s special.

There are four audio transducers integrated into the seat back which can vibrate to the beat of whatever audio track you’re listening to. The system uses AI to detect the lower frequencies and then work out which beats to transmit.

This is technology used by musicians, Coldplay’s Chris Martin reportedly wears transducers integrated into a vest when he performs, but Range Rover is confident it will add to the ownership experience.

It’s certainly an interesting technology and a demonstration across different music genres highlights the way the system adapts to individual songs, but it’s hard not to feel like this is more of a gimmick than something an owner will use every day. 

If you don’t like listening to music with it, the Body and Soul Seats also work with a ‘Wellness’ setting that features six audio pieces (designed by Coventry University musicians) - calm, soothe, serene, cool, tonic and invigorate.

It’s probably what you need to help settle your heart rate after you unleash the full performance potential of the Sport SV.

In the back seat there’s none of this technology but they do feature heating and ventilation as well as power recline functions. There’s also four-zone climate control, so every occupant can be comfortable.

To be blunt, the Range Rover Sport SV is one of those vehicles that if you have to ask, you can’t afford. Particularly in this case, as the model has launched in a single specification level, the Sport SV Edition One, which is priced from $360,800, plus on-road costs.

That puts it into the same financial category as the likes of the Aston Martin DBX ($356,512), Porsche Cayenne Turbo GT Coupe ($364,700) and Lamborghini Urus ($409,744) - especially when we discuss some of the pricier options.

For that price the Sport SV Edition One comes with exclusive branding on the front splitter, centre console, treadplates and puddle lamps as well as a raft of standard features likely to carry-over to the 2025 model year version.

These include carbon-fibre badges, forged 23-inch alloy wheels, digital LED headlights, a carbon-fibre bonnet, 16-way electronically adjustable front seats, Meridian 'Signature' sound system, 13.1-inch multimedia touchscreen, Apple CarPlay and Android Auto and newly developed ‘Body and Soul Seats’ (more on those later).

But if you’re feeling really sporty, you can upgrade your Sport SV with lightweight carbon fibre wheels and carbon ceramic brakes.

These will cost you a staggering $16,130 and $13,500, respectively, but the wheels measure 23-inches and are the largest fitted to a production car (and are also Australian-made by Carbon Revolution in Geelong).

Unfortunately, for now at least, this is all a moot point because Range Rover Australia has already invited and sold all examples of the Sport SV Edition One, so you'll need to be patient and wait until at least 2025 to have the option to buy one.

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.

Sadly the wonderfully evocative supercharged V8 engine from the previous generation Range Rover Sport SVR is gone.

But, thankfully, in its place is a more powerful engine that’s exclusive to the Sport SV in the Jaguar Land Rover family.

It’s a 4.4-litre twin-turbo V8 petrol engine with mild-hybrid assistance, which is actually built by BMW and based on the same powertrain as you’ll find in the M5, albeit with some specific Range Rover elements for more off-road capability.

It’s also more powerful than the old supercharged V8, making an impressive 467kW of power and 750Nm of torque, which is a 44kW and 50Nm improvement over the old engine.

It’s paired to an eight-speed automatic transmission, again with a specific SV calibration for improved performance. 

And, of course, being a Land Rover, it’s also got a four-wheel drive system with full off-road systems as well as an active locking differential.

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.

Despite all the extra power, thanks to the mild-hybrid system it’s more fuel efficient and produces less emissions than the old 5.0-litre V8.

Still, it’s all relative, and as you’d expect from a twin-turbo V8 SUV it’s still thirsty and uses 11.7-12.5-litres per 100km, based on European specifications.

The mild hybrid system uses a crank-integrated starter generator instead of a conventional alternator, providing a boost of up to 20kW and 175Nm of electrical power when needed, with the energy captured during braking and stored in a 48-volt lithium-ion battery.

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.

Before driving the Sport SV you need to understand its highly complex suspension system that allows it to be so dynamically capable. Range Rover calls it a '6D Dynamic' system, because it can control the car left and right, up and down and corner to corner. 

To achieve this the system uses a combination of hydraulic interlinked dampers, height-adjustable air springs and pitch control, which makes it a semi-active suspension set-up similar to the set-up Formula 1 race cars used to boast. 

This allows the Sport SV to sit between 10-25mm lower than the other Sport models and with its clever suspension can actually sit flatter in the corner with less pitch and roll - which is the traditional enemy of high-riding SUVs when it comes to handling.

But the suspension is only part of the story, with the intelligent all-wheel drive, rear-wheel steering, torque vectoring and the active locking rear diff all combining to produce an SUV with incredibly impressive dynamic capability.

Put simply, there’s never been a Range Rover that deserved to be driven on a racetrack. The Sport SV changes that, and thankfully the company let us loose on the challenging Portimao circuit in Portugal to put the SV through its paces.

Range Rover management was quick to stress it doesn’t expect the Sport SV to be a race track regular for its owners, but driving it on track did highlight the extreme potential it offers. 

With such a powerful engine it should come as no surprise that the Sport SV hauled down the straight, hitting 233km/h at the end of the long front straight, but with speed still rising which suggests its 290km/h claimed top speed is accurate.

Even from those speeds and with 2560kg of SUV to slow down, with the carbon ceramic brakes it was no trouble whatsoever. Instead the braking was strong and consistent across multiple laps. 

The steering is the particular highlight, with the rear-wheel steering helping to turn the Sport SV sharper and more quickly than a big SUV like this should. 

But while it impressed on the circuit, we also experienced it on some great winding rural roads across Portugal and this is where it shone even more brightly.

This is an SUV that you’ll genuinely enjoy driving with its ability to carve through corners and blast down anything resembling straight road.

But to ensure it lives up to the Land Rover badge on the front, we also drove it off-road. Nothing too serious at first, just muddy ruts, across some water and over some rocks.

But then we were guided through a course that showed off its articulation potential, which is far greater than the average owner will ever need. 

However, to achieve this Range Rover removed the carbon-fibre front splitter, so it’s not the most off-road friendly model the brand offers.

The Sport SV comes generously equipped with safety gear, as you’d expect at this price point. There’s all the usual passive safety, including airbag coverage for all occupants, and plenty of active safety including adaptive cruise control with steering assist, remote park assist and 3D surround cameras - which are used for off-roading as well as parking.

As with the rest of the Range Rover Sport range, it has been awarded a maximum five-star rating from safety agency, ANCAP.

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.

If you’re worrying about servicing costs, you’re probably shopping at the wrong end of the market, but as with the range-topping Range Rover model the price of the car is expected to include servicing for the first five years and roadside assistance for the same period.

It’s also covered by a five-year, unlimited kilometre warranty.

As with all Range Rovers the car will tell you when it needs a service depending on driving conditions. For example, if you hit the track or go off-roading it will likely need a visit quicker than if you're just commuting to and from work.