Mercedes-Benz GLS-Class vs Genesis GV80

What's the difference?

The GLS63 is an intimidating beast from afar, but it rewards its occupants in almost every way. Yep, there really isn’t a box it doesn’t tick without serious compromise, such is its breadth of capability.

If there was ever a Swiss Army Knife of cars, the GLS63 is definitely a contender for the title, one that makes it very hard to wipe the smile off your face. Just make sure you can fit it in your garage first…

The Genesis GV80 Coupe is a rare breed – it comes packed to the gills with features, has great ownership benefits and can easily accommodate a large family in comfort.

The fuel economy isn’t great but it looks and acts the part of a true luxury SUV. My husband and son were impressed and enjoyed all of the features it has.

If the GLS63 was a Marvel superhero, it would undoubtedly be the Hulk. Simply put, it has road presence like few others. In fact, it’s frankly menacing.

Of course, the GLS is already pretty intimidating due to its sheer size and blocky design, but the GLS63’s full-fat AMG treatment takes it to another level.

Naturally, the GLS63 gets an aggressive body kit, with its purposeful bumpers, side skirts and rear spoiler serving as instant reminders of what you’re dealing with, but it’s AMG’s signature Panamericana grille insert that really hammers home the point.

Around the side, the GLS63’s 22-inch alloy wheels with staggered tyres (front: 275/50, rear: 315/45) make their presence known, positioned below the wheelarch extensions.

That said, some fun’s also had at the rear end, where the GLS63’s diffuser element integrates the foreboding sports exhaust system with quad tailpipes very neatly.

The focused Multibeam LED headlights also look the part, while the opposing LED tail-lights tie everything together outside quite nicely.

Inside, the GLS63 stands out from the GLS crowd with its sports steering wheel with Dinamica microfibre accents, and multi-contour front seats, which are covered in Nappa leather alongside the armrests, dashboard and door shoulders and inserts.

Of note, the doors bins are unfortunately of the hard plastic variety, which is very disappointing in a vehicle that costs this much. You would expect that cow hide would also been applied to them, but alas it isn’t.

The GLS63’s black headliner serves as an obligatory reminder of its sporting intent, and while it makes for a dark cabin, metallic accents are prominent throughout, while the optional trim (our test vehicle had carbon-fibre) mixes things up, alongside the ambient lighting.

And let’s not forget the GLS63 is still loaded with plenty of cutting-edge technology, including a pair of 12.3-inch displays, with one the central touchscreen and the other the digital instrument cluster.

Both are powered by Mercedes’ class-leading MBUX multimedia system and feature Apple CarPlay and Android Auto support. This set-up arguably remains the best there is today thanks to its speed and breadth of functionality and input methods.

At first glance, there’s not a lot that separates the external styling of the Coupe and SUV, at least in the front.

The biggest difference is obviously in the rear and it's here Coupe's design shines. The SUV sibling looks nice but is a little boxy at the rear and features a dicky-looking window. The Coupe's rear is pinched but it’s rather softly done compared to some rivals.

It manages to look sleek and sexy as coupes tend to be without losing any of its large road-side presence.

The 'Storr Green Matte' paintwork on our test car highlights the high-end feel, as does the huge LED external lights and chrome accents.

Head into the cabin and you'll find design elements which accentuate the width of the car – like the long air vent strip that runs the length of the dashboard, a wide centre console and the huge 27-inch OLED technology screen that houses the media system and instrument cluster. Even the touchscreen control panel for climate and seat functions is big.

Our test model has a cream-coloured suede headliner and quilted Nappa leather seats that look plush. Contrasting stitching and the seatbelts are a bright red (or dark orange, depending on who you ask) and the panoramic sunroof adds a bright and cheery element.

The ambient lighting surrounds a lot of the features, like the cupholders and the crystal rotary dials. In fact, when you pop the car into reverse, the light changes from whatever it was to red, which is neat.

As far as luxury cars go, this totally looks the part and while design is very subjective, I love how this looks inside and out. Let us know what you think of it in the comments.

Measuring 5243mm, 2030mm wide and 1782mm tall with a 3135mm wheelbase, the GLS63 is an upper-large SUV in every sense of the term, which means it’s also very practical.

For example, cargo capacity below the load cover is decent, at 355L, but stow the 50/50 power-split-folding third row via the boot and it’s very good, at 890L, or drop the 40/20/40 power-split-folding middle bench, too, and it becomes a cavernous 2400L.

Better yet, the boot’s aperture is almost square, and its floor’s flat, while there’s no load lip to contend with, making loading bulkier items even easier. Up to four tie-down points are also on hand (depending on seating configuration) to secure loose cargo.

Under the false floor is the space-saver spare, which is to be expected, but what isn’t expected necessarily is the fact there’s also enough room there for the cargo cover when it’s not in use, which would be the case if six or more passengers are regularly onboard.

Moving into the power-sliding second row, the GLS63’s practicality is once again brought to the fore, with up to six-plus inches of legroom available behind my 184cm driving position.

There’s also two inches of headroom with the panoramic sunroof in situ, not to mention just enough toe-room. The GLS63’s small transmission tunnel and sheer width also mean three adults can be seated on the middle bench with few complaints.

Amenities-wise, the second row has map pockets on the front-seat backrest and a small fold-down cubby below the rear climate controls, with it containing two slots for smartphones and a pair of strategically placed USB-C ports.

The rear door bins can take one large bottle each, while a fold-down central armrest is also on hand, featuring a shallow tray and retractable (and flimsy) cupholders.

Alternatively, the $2800 Rear Seat Comfort Package fitted to our test vehicle subs in a tablet that can control the multimedia system, a wireless smartphone charger and a small cubby into the former, as well as a heated/cooled cupholder atop the rear of the centre console.

In the third row, it’s not quite as roomy if you’re an adult. With the middle bench in its most accommodating position, my knees still brush up against its backrest, which is to be expected given it’s primarily designed for children. I also have an inch of headroom there.

Nonetheless, getting in and out of the third row is relatively easy as the power-operated middle bench tumbles forward and provides just enough space to make entry and exit somewhat graceful.

When seated, rear occupants are treated to two USB-C ports and one small cupholder each, so they’re arguably taken better care of than those in the middle.

Child seats are well and truly accommodated, with four ISOFIX and five top-tether anchorage points fitted across the second and third rows, although the latter will inevitably prove to be a much tighter fit.

The driver and front passenger are still taken care of, with a front cubby taken up by two heated/cooled cupholders, a wireless smartphone charger, two USB-C ports and a 12V power outlet, while their door bins take one large and one small bottle each.

In-cabin storage options include the large central storage bin, which hides another USB-C port, while the glovebox is on the smaller side, with about a third of it taken up by the fragrance, which is pumped into the cabin to ensure the interior always smells its best.

With all of its features offering comfort and luxury, practicality is pretty high for the GV80 Coupe.

The cabin feels almost cavernous up front for my 168cm height. As mentioned, the seats are very comfortable and there is a stretching function that briefly comes on during a longer journey to ease any fatigue in your lumbar.

The rear row is almost as large as the front and there's a limo-like quality to the legroom that taller individuals will enjoy. The headroom is good for the outboard seats but a taller adult will be hunched when sat in the middle. Keep that for a kid!

Amenities in this row are excellent with the powered outboard seats that feature heat and cooling functions, directional air-vents, climate control and retractable sun-blinds (my son's favourites). 

The individual storage is a little less than you might expect for such a large car, especially up front, as all options are on the shallow/small side.

There is a middle console (think of it as a tray), glove box, two cupholders, two drink bottle holders and a phone cubby that can be closed to keep things looking neat.

The rear row sees two map pockets, two cupholders and a storage cubby in the fold-down armrest, as well as some shallow bin storage.

Technology looks stellar, is easy to use and found throughout.

You're spoiled for choice when it comes to charging as there are four USB-C ports, three 12-volt sockets and a wireless charging pad to choose from. 

And new for 2025 is the UV-C feature, which sterilises whatever you place inside the middle console. Handy for anyone who wants to disinfect small items, like a phone, keys or wallet.

The multimedia system takes a while to get used to as the tech has been updated but once you do, it’s an easy system. You can access the media system via the touchscreen or the rotary dial. Climate control and seat functions are accessed via the large control panel that sits underneath, which is handy for when you're on the go. 

The GV80 Coupe has built-in sat nav, wired Apple CarPlay and Android Auto, as well as, a 12-inch colour head-up display.

Because of the sleek rear shape, the boot space sits at 644L when all seats are in use. It’s large enough for my gear and weekly errands and I like the powered tailgate's proximity feature. As long as you have the key fob, it will open when you stand at the rear. Great for when you have your hands full.

The loading space is level and the rear seat has a 40/20/40 split, which opens up storage options. But underneath the floor, there are heaps of cubbies for extra storage of smaller items and it’s here the tyre mobility and roadside assistance kits are housed.

The GV80 line-up has seen a model facelift for 2025 and the flagship’s powerful V6 engine now comes standard for all models. There's new tech and some design tweaks, too.

That means the price points are starting to creep a lot closer to their Euro rivals as the 3.5T Luxury AWD Coupe is priced from $136,000, before on-road costs.

However, despite only being offered in one variant for our market, the coupe is is ridiculously well-specified and you don't have to add luxury/enhancement packs at additional costs as you do on some of this car's rivals (I'm looking at you Range Rover).

In comparison, the closest rival, the BMW X6 xDrive40 MHEV, sits at $144,900 MSRP, and then the Range Rover Velar Autobiography comes in at $156,430 MSRP before the most expensive rival, the Mercedes-Benz GLE 450 4Matic Coupe, at $159,900 MSRP.

When I start talking about the GV80 Coupe's standard features I lose breath trying to list them all and you're about to learn why.

For comfort and luxury the Coupe is offered with crystal accents on its dials, Nappa leather upholstery, suede trims, a heated steering wheel and a panoramic sunroof.

The front seats are powered and feature a two-position memory function, lumbar- and side-bolster adjustments, extendable under-thigh supports, heat and ventilation functions... and a massage function.

Rear outboard seats are also powered and can be slide backwards/forwards and recline. They feature heat and ventilation functions as well.

Practical features include a powered tailgate with a proximity opening feature, retractable sun blinds (rear row), tri-zone climate control, keyless entry, push-button start, remote start and parking assist (via key fob), carwash and valet mode, and new for 2025, a biometrics system (fingerprint access for vehicle start and profile selection).

Technology includes a new 27-inch OLED screen that houses the multimedia system and instrument cluster, customisable ambient lighting, wired Apple CarPlay and Android Auto, over-the-air updates, satellite navigation, 12-inch coloured head-up display, digital rear view mirror, four USB-C ports, three 12-volt sockets, a wireless charging pad, Bluetooth connectivity and digital radio.

Phew... told ya there's a lot. Oh, and an 18-speaker Bang & Olufsen sound system. There. Done.

The GLS63 is powered by a familiar 4.0-litre twin-turbo V8 petrol engine, with its version producing a thumping 450kW of power at 5750rpm and 850Nm of torque from 2250-5000rpm.

This unit is mated to a nine-speed torque-converter automatic transmission and AMG’s fully variable 4Matic+ all-wheel-drive system with torque vectoring and a rear limited-slip differential.

This set-up also features Mercedes’ EQ Boost 48V mild-hybrid system, which actually gives a 16kW/250Nm electric boost in short bursts, such as when accelerating off the line.

Speaking of which, the GLS63 sprints from a standstill to 100km/h in just 4.2 seconds, while its top speed is electronically limited to 250km/h.
 

The GV80 model facelift sees all variants enjoy a powerful 3.5L twin-turbo petrol V6 engine that produces 279kW of power and 530Nm of torque.

The Coupe is an AWD, features an eight-speed auto transmission and can do a 0-100km/h sprint in just 5.7 seconds.

It also has different terrain modes and a braked trailer towing capacity of 2722kg. Whether you’d use this car for that sort of stuff is another matter.

The GLS63’s fuel consumption on the combined-cycle test (ADR 81/02) is 13.0L per 100km, while its carbon dioxide emissions are 296 grams per km. All things considered, both claims are unsurprisingly high.

In our real-world testing, we averaged a fearsome 18.5L/100km over 65km of driving, split between highways and country roads, so not your usual mix. A very heavy right foot definitely influenced that result, but don’t expect to do too much better in a normal run.

For reference, the GLS63’s 90L fuel tank can be filled up with 98RON petrol at a minimum.

Aye, here's the rub, as the hefty power comes with a thirsty gullet.

The official combined fuel-cycle consumption figure is a hefty 11.7L/100km and my real-world usage came out at 11.4L/100km after doing a lot of open-road trips this week.

I haven’t held back using the power but it's thirsty compared to its rivals which mostly sport mild-hybrid powertrains.

Based on the large 80L fuel tank and official combined fuel cycle consumption figure this car's theoretical driving range is 684km.

Frankly, the GLS63 has absolutely no right being as capable as it is. It’s a really big bus that’s legitimately convinced it’s a sports car half its size.

Being a GLS variant, the GLS63 has independent suspension consisting of four-link front and multi-link rear axles with air springs and adaptive dampers, but its party trick is the addition of active anti-roll bars.

In what feels like magic, the GLS63 is simply not intimidated by corners, despite having massive dimensions and a considerable 2555kg (kerb weight) to deal with.

The active anti-roll bars make the GLS63 so much easier to drive fast through the twisty stuff, almost eliminating body roll, taking one key variable out of the equation for the driver. Active engine mounts are also fitted, helping to settle things even further.

The electric power steering on hand is also good. It is speed-sensitive and has a variable ratio, which basically makes the set-up more direct when it needs to be. It’s typically light in hand, too, until one of the sportier drive modes is engaged and extra heft is added.

So, handling is scarcely believable, which means the ride must be compromised, right? Yes and no. With the adaptive dampers in their softest setting, the GLS63 is very compliant. In fact, we’d say it feels luxurious when compared to other high-performance SUVs.

That said, our test vehicle was fitted with the optional 23-inch alloy wheels ($3900), which look the part but expose sharp edges and other road imperfections, not to mention generate noise easily heard inside. Naturally, feedback is exacerbated in the sportier drive modes.

Anyway, there’s more performance, and the GLS63 has the rest in spades. Its engine is a powerhouse in every sense of the word. It’s so powerful, in fact, that it hilariously hunkers down off the line or when suddenly accelerating at low speed.

Thanks to the mild-hybrid system, wads of torque is available from the get-go, making for a highly responsive driving experience, even in those rare moments when the engine isn’t on song.

While not as characterful as some of the other members in the 63 series, the GLS63 still makes some thoroughly entertaining noises, with its sports exhaust system popping like mad while on the overrun.

All of this ability is very well and good, but you need to be able to pull up quickly, and the high-performance braking package (400mm front and 370mm rear discs with six-piston fixed callipers and single-pot floating stoppers respectively) mercifully does exactly that.

The GV80 Coupe has a deep well of power to dip into and fantastic pick up. The power delivery feels effortless and it’s easy for urban and open-road driving.

The GV80 isn't as dynamic on the road as some of its rivals when it comes to the ‘sporty’ factor and you notice that the most when you hit high winds or tackle a tight turn, as there is some roll, but on the whole it’s a smooth ride. Think of it as more ‘stately’ than sporty.

The cabin is mostly quiet but wind noise can creep in at higher speeds.

The wide windows and high ride mean the visibility is very good and so is the sound quality from the 18-speaker Bang & Olufsen audio system. Every school run is a concert!

The GV80 Coupe is large car and will fill out a parking space but it’s not hard to park because the 360-degree view camera system is so good and the projected parking guidelines add assurance in a tight spot. 

There is a remote parking assist feature, where you can move the car remotely from your key fob, which is great for those times someone parks a bit too close and there’s not enough door clearance to get in.

For those concerned with safety, you needn’t worry as the GV80 Coupe has a maximum five-star ANCAP safety rating from testing done in 2021 and scored highly for its adult and child protection scores at 91 per cent and 88 per cent, respectively.

Standard safety features include rear cross-traffic alert, lane departure alert, lane keeping aid, traffic sign recognition, intelligent seatbelt warning, a head-up display, adaptive cruise control, blind spot monitoring, blind-spot view monitor, parking assist pilot, driver attention alert and safe exit warning.

Other features include child occupant alert, leading vehicle departure alert, tyre pressure monitoring, LED DRLs, a 360-degree view camera system and front and rear sensors.

The GV80 Coupe comes with AEB with forward collision warning, car, pedestrian, cyclist and backover detection which is operational from 5.0–200km/h (up to 85km/h for car detection).

The GV80 features 10-airbags, which is great for the class!

There are ISOFIX mounts on the rear outboard seats plus three top tethers and you might get three seats installed if they’re not too big but two will fit best.

As with all Mercedes-AMG models, the GLS63 comes with a five-year/unlimited-kilometre warranty, which currently sets the standard for the premium market. It also comes with five years of roadside assistance.

The GLS63’s service intervals are relatively long, at every 12 months or 20,000km (whichever comes first). Better yet, it’s available with a five-year/100,000km capped-price servicing plan, but it costs $4450.

The GV80 Coupe comes with a five-year/unlimited km warranty and complimentary servicing for five-years or 50,000km, whichever occurs first.

There is also complimentary roadside assistance through Assist Australia for five years.

Since this is a turbo, the servicing intervals are a little annoying at every 12 months or 10,000km but it’s rare for a car brand, let alone a luxury one, to offer anything for free. What Genesis offers is a real plus.