BMW X6 vs Mercedes-Benz Gls600

What's the difference?

I was not expecting to like the BMW X6 xDrive 40i M Sport as much as I do. The styling is still polarising but the facelift will throw more people towards the liking rather than disliking side of the fence. The cabin and boot are super practical and the X6 nails all the premium elements you expect at this level. It’s driving and handling are what win me over, though.

My son loves this one and doesn’t want to hand it back. My husband also noted how nice he thought the X6 was… and that’s saying something for a born and raised 'country boy'!

It’s big, it’s bold and totally baller, but that’s kind of the point.

The Mercedes-Maybach GLS 600 might not win over many fans with its in-your-face design or its sky-high price tag, but there is definitely an appeal here.

Taking luxury to another level is no easy feat, especially in a Mercedes, but the attention to detail, lavish second row and butter-smooth V8 engine combine to turn the already-good GLS into this exquisite Maybach.

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

SUV coupe styling with its raised platform and pinched bum just doesn’t do it for me usually but I like it on the new X6 model. The facelift helps the X6 appear more athletic and just plain meaner than the previous version.

The front end sees the most change with new adaptive LED headlights and a bigger 'kidney' grille. The kidneys are illuminated, which adds to its night-time presence and the extended blacked-out intake vents at the front and around the car make it look sharp as hell.

The weird prong on the side mirrors has been dropped in favour of a more seamless design (hurrah) and the 22-inch alloy wheels give total va-va-vroom sport-vibes. 

On the interior, the dashboard has been revamped with a more pronounced shape and a curved display panel that houses the 12.3-inch digital instrument cluster and 14.8-inch multimedia system.

The air-vents now blend more into the dash but the little knobs for them might not be everyone’s cup of tea.

The ambient lighting is customisable and the quilted seats look beautiful but purists will wince on learning it’s synthetic leather, especially at this price point, but it feels and looks very nice. 

If you have wealth, why not flaunt it? I reckon that might be the philosophy of the Maybach designers back at HQ, and it kind of shows!

The styling of the Maybach GLS might be the most controversial thing about it. But honestly, I love it!

The liberal lashings of chrome, the three-pointed star hood ornament, and especially with the optional two-tone paintwork, it’s all just so over the top and in your face that it brings out a smile.

From the front, the Maybach is also distinguished by an imposing grille that gives it serious presence on the road, while the profile is characterised by massive 23-inch multi-spoke wheels – better park well clear of any gutters!

You’ll also notice the Maybach eschews the usual black-plastic cladding around the wheelarches and underbody found on lesser/cheaper SUVs in favour of body-coloured and gloss-black panels.

There is also a little Maybach badge on the D-pillar, which is a nice attention-to-detail touch. From the rear, there’s more chrome, while the dual exhaust outlets hint at the performance on offer. But it’s inside where you really want to be.

Everything in there is just a sea of soft-touch and premium materials, from the dashboard to the seats and even the carpet under your feet.

Though the layout of the interior mirrors the GLS, the extra detailing, like the Maybach-stamped pedals, unique multimedia surround and woodgrain steering wheel, elevates the cabin into something truly special.

And if you opt for the comfort rear seats, well they wouldn’t look out of place on a private jet.

The second-row seats also feature contrast stitching on the headrests, cushions, console and doors for that add a touch of class.

I can see the Maybach GLS might not be to everyone’s tastes, but it certainly stands out from the sea of samey-looking luxury SUVs out there.

You know you’re in a large SUV when you slide into the X6 because the cabin has a lot of space in both rows.

But also because of the higher centre console design, you feel tucked into the car despite the higher seating position. It makes it feel far sportier than your typical SUV. 

Even back rowers enjoy decent legroom and headroom, despite the panoramic sunroof and sloping roof design. Six-footers should be relatively comfortable in both rows but it's best to reserve the middle seat as a sometimes position for adults. The raised floor won’t allow true comfort for a longer trip.

Let’s chat luxury because there’s plenty to be had with the electric front seats and their cloud-like comfort.

The electrically-adjustable side bolsters and adjustable lumbar support makes it feel like you’re being cuddled by the seat and also hold you in place in a turn. The extendable under-thigh supports minimise leg fatigue on a longer trip.

However, the back seat is almost as comfortable as the fronts in terms of cushioning. You also sit in, rather than on top of the seats which is a nice change for an SUV. 

Individual storage is great in both rows and up front you get a dual-opening middle console, glove box and a handy utility area that houses the cupholders and two phone pockets.

There is also a storage nook on the driver’s side that will comfortably hold a wallet. 

In the rear you enjoy two map pockets on the front seat backs and retractable cupholders in the fold-down armrest.

The armrest houses a shallow device holder and sits at a good height. Both rows enjoy deep storage bins in each door and a large drink bottle holder.

Happily, the holder is tilted towards the user, rather than away which is what you usually see.

The boot is a great size at 580L with all seats in use. There’s a little lip that has practical metal scuff plates but otherwise the loading space is level.

The hands-free powered tailgate is welcome and the handy 40/20/40 split on the back row opens up your storage options.

You get a temporary spare tyre underneath the floor and it’s cool how the floor has a gas strut, which makes the area much easier to access.

The concertina-style cargo cover is a bit dicky to use but I like how solid it is. It could easily double as a shelf by itself. 

Charging options are abundant with a total of two 12-volt ports, a USB-A port, three USB-C ports and a wireless charging pad to choose from throughout the car. But it is annoying to use the pad when the front cupholders are in use.

I like having hardened kickplates on the backs of the front seats because my seven-year old loves putting his feet on everything.

The higher ground clearance makes this an easy car to get in and out of but it also makes for a great view for my son. He finds the doors a little heavy to close but the massive door grab handles help!

Amenities in the rear row make it a pleasant space to be in for kids and adults alike. You have reading lights, map pockets, two storage shelves and directional air vents.

There is manual climate control in this row, too, but it feels at odds with the rest of the high tech in the car.

On that note, the updated technology looks gorgeous.

The head-up display is clear and the digital instrument panel offers plenty of customisation. It's a super handy feature to access your recent call log via the steering wheel controls and see it pop up on the instrument cluster. 

The touchscreen multimedia system is responsive but you can also use the rotary dial to get around it. There is a stack of information in it, though, which will take a bit to get your head around. Can’t fault its graphics, it looks hot, but some users may feel flustered at first.

The system has built-in satellite navigation that features an augmented reality feature, which overlays dynamic instructions on the video feed. What makes it practical is how it can be viewed on your instrument cluster, which means more on-road focus for the driver. 

There is wired Android Auto and wireless Apple CarPlay, with the latter being simple to connect to. You don’t have the important climate control buttons/dials up front and I find it annoying to access the multimedia screen to change climate and fan speed settings. 

What you lack in controls there is more than made up for in the centre console. There are a lot of buttons, from the push-button starter, rotary control wheel and everything in between.

Even after a week, my mind still has a mini freeze looking at them while on the go.

The Maybach GLS is based on Mercedes’ largest SUV offering to date, which means there is plentiful room for occupants and cargo.

The front row feels positively palatial, with heaps of head-, leg- and shoulder-room for six-foot (183cm) tall adults.

Storage options include generous door pockets with room for large bottles, two cupholders, a smartphone tray that doubles as a wireless charger, and an underarm storage cubby.

But the rear seats are where you want to be, especially with these second-row comfort seats fitted.

It’s rare when there is more room in the rear than the front, but it does makes sense for a car like this, especially when you consider the GLS this car is based on is a three-row vehicle.

The removal of seats six and seven mean there is more room in the second row, especially with the comfort seats fitted, allowing you to recline fairly flat and to get into a comfortable position.

Storage is also plentiful in the second row, with a bespoke centre console in our test car, the aforementioned drinks fridge, backseat storage and a nice door bin.

Open the boot and you will find 520 litres (VDA) of volume, which is plenty for golf clubs and holiday luggage.

However, if you opt for the rear seat refrigerator, the cooler box will eat into boot space.

The best things in life might come free, but the most luxurious things certainly come at a cost.

Wearing a price tag of $378,297, before on-road costs, the Mercedes-Maybach GLS 600 is probably out of the reach for most mere mortals, but there’s no denying Mercedes has thrown in a lot for the spend.

And with it positioned nearly $100,000 north of the Mercedes-AMG GLS 63 ($281,800) – with which it shares its platform, engine and transmission – you’d want to get a bit of bang for your buck.

Standard features include keyless entry, push-button start, Nappa leather interior trim, a head-up display, a sliding glass sunroof, power-closing doors, heated and cooled front and rear seats, and interior ambient lighting.

But, as the epitome of Mercedes’ luxury SUVs, the Maybach also scores 23-inch wheels, a heated woodgrain and leather steering wheel, open-pore wood trim and five-zone climate control – one for each passenger!

Handling multimedia duties is Mercedes’ 'MBUX' 12.3-inch touchscreen display, complete with satellite navigation, Apple CarPlay/Android Auto support, digital radio, a premium sound system and wireless smartphone charger. 

Rear seat passengers are also treated to an entertainment system with TV tuner so you can keep up with the Kardashians from the road, as well as a bespoke MBUX tablet with functions for climate, multimedia, satellite navigation input, seat controls, and more.

Sadly, the Samsung-branded tablet glitched out a few times while we were using different functions and required a reset.

No doubt, a software update can fix some connection issues, but it's still something that shouldn’t be happening in a high-dollar, ultra-lux SUV.

Options with the Maybach GLS are surprisingly limited, with buyers able to choose between different exterior colours and interior trims, second-row comfort seats (as fitted on our test car), and a rear champagne chiller box.

Look, nearly $400,000 for an SUV might seem like a lot, but you really are wanting for nothing with the Maybach GLS, and it's comparable in price to other high-end SUVs like the Bentley Bentayga and Range Rover SV Autobiography.

The xDrive40i M Sport has a 3.0-litre, inline six-cylinder turbo-petrol engine with maximum outputs of 280kW and 540Nm. That’s 30kW and 90Nm up from the previous model.

It has a smooth eight-speed auto transmission and is all-wheel-drive.

The facelift sees the addition of a new mild-hybrid system which makes for almost imperceptible stop/start functionality when idling and a smidge better on-road fuel economy. 

With a 0-100kmh sprint time of 5.4-seconds, it’s obvious that it has plenty of power to have fun with.

Powering the Mercedes-Maybach is a 4.0-litre twin-turbo petrol V8 – the same engine you will find in many AMG products like the C 63 S and GT coupe.

In this application, the engine is tuned to produce 410kW and 730Nm, which is admittedly less than you get in something like the GLS 63, but the Maybach isn’t designed to be an outright powerhouse.

With drive sent to all four wheels via a nine-speed automatic transmission, the Maybach SUV will accelerate from 0-100km/h in just 4.9 seconds – also helped by a 48-volt mild-hybrid 'EQ Boost' system.

Though not designed for outright grunt, the Maybach GLS’s engine is nicely tuned to deliver smooth power and seemless shifting

The Maybach is more than a match for rivals such as the Aston Martin DBX (405kW/700Nm), Bentley Bentayga (404kW/800Nm) and Range Rover P565 SV Autobiography (416kW/700Nm).

Expectations for a thirsty engine were high, considering the hefty power available, but this version of the X6 has proved to be quite economical.

The xDrive40i M Sport variant has an official combined cycle fuel economy figure of 9.3L/100km but my real-world usage averaged 8.8L/100km.

That’s after mostly open-road driving with only a little ‘city’ thrown in but I didn't hesitate to use the power, so I'm happy with the result.

The X6 has a big 83-litre fuel tank and based on my usage, you’d see a driving range of around 943km, which is great.

BMW only recommends a minimum 95 RON petrol to be used.

Official fuel consumption figures for the Mercedes-Maybach GLS 600 are pegged at 12.5 litres per 100km, and it’s recommended to fill up with 98 RON premium unleaded, so be prepared for a big fuel bill.

This is despite the 48-volt mild-hybrid tech that lets the Maybach coast without using fuel in certain conditions, and extends start-stop functionality.

In our brief time in the car, we managed to get 14.8L/100km. Why is the Maybach so thirsty? That’s simple, it’s weight.

All the cool features like Nappa leather interior, woodgrain trim and 23-inch wheels add weight to the overall package, and the Maybach GLS tips the scales at nearly three tonnes. Ouch.

The X6 is a thoroughbred on the road. It’s wide stance and massive wheels provide a well-balanced and grippy on-road ride experience.

Seriously, the tyres feel glued to the road even in the wet. Confidence is high with this one.

There is plenty of power to enjoy and you don’t feel like you’re digging deep for it, either, when you have to get up to speed or overtake.

It has the handling and power of a much smaller and sportier car but at no point does it feel wild or reckless to drive. It’s got a certain elegance and maturity to its handling.

Despite those massive wheels, the ride comfort is fantastic with the adaptive suspension. You still feel the road but you’re not knocked about by it. It’s very much a driver’s car in that sense but passengers still feel well-cushioned.  

The cabin is insulated and you get basically no road noise or wind noise but occasionally you get some feedback from the tyres depending on the road surface. Longer journeys are comfortable and quiet.

The steering is light enough that you don’t feel like you’re hauling a massive SUV around but is still responsive. Meaning you can tackle a winding road or urban traffic easily.

When it comes time to park it, you’ll love having the 360-degree view camera system. It’s the best and clearest system I’ve sampled.

Add the front and rear parking sensors and no car space is an issue. But if you’re unsure, you can use the Park Assist feature to help out.    

While you might not find many owners of the Maybach GLS in the driver’s seat, it’s nice to know it can hold its own in the driving dynamics department.

Don’t get me wrong, this won’t give the AMG-blessed GLS 63 a run for its money, but the Maybach SUV is far from dull.

And the engine plays a large part in this. Sure, it’s not as savage as some AMG models, but there is still plenty of grunt to come out of corners with enthusiasm.

The tune of the engine is obviously weighted towards smoothness and comfort, but with 410kW/730Nm on tap there is enough there to make things feel urgent.

The nine-speed automatic transmission also has to be called out, as it is calibrated in such a way that the shifts are imperceptible. There’s none of that mechanical jerkiness and clunkiness involved in swapping cogs, and it just makes the Maybach GLS feel that much more luxurious.

The steering, while straying a towards numb, still offers plenty of feedback so you know what’s happening underneath, but it’s the active body control that works to keep this hefty SUV in check in the bends.

The best bit, though, has to be the air suspension, which floats the Maybach GLS over bumps and uneven roads like a cloud.

The front-facing camera can also read the terrain ahead and set-up the suspension for incoming speed bumps and turns, taking comfort up to a whole new level.

All this is to say, yeah, the Maybach might look like a boat, and cost as much as a boat, but it doesn’t actually feel like a boat behind the wheel.

But really, are you buying this car because you want to be the driver? Or are you buying one because you want to be driven?

In the second row, it’s as close as you’ll get to a first-class flight on the road, and the seats are genuinely plush and cosy.

It’s eerily quiet and supremely comfortable in the second row, leaving you free to carry on with important business like drinking your champagne or uploading to the 'gram.

And while I usually suffer from a bout of motion sickness within minutes of looking at a phone in a car, I didn’t feel such ill effects in the Maybach GLS.

Even after about 20 minutes scrolling through Facebook and emails while being driven around, there was no sign of a headache or queasiness, which is all thanks to how well the suspension is tuned and the active anti-roll technology doing its thing.

The Mercedes-Maybach GLS 600 has not been tested by ANCAP or Euro NCAP, and therefore doesn’t wear a safety assessment rating.

Despite this, the safety equipment found on the Maybach is comprehensive. As standard, there are nine airbags, a surround-view camera system, autonomous emergency braking (AEB), tyre pressure monitoring, traffic sign recognition, front and rear parking sensors, rear cross-traffic alert, and automatic high beams.

Mercedes’ 'Driving Assistance Package Plus' is also included, bundling adaptive cruise control, lane-keep assist and blind-spot monitoring.

The 'Urban Guard' suite also adds an alarm, tow-away protection, parking damage detection, and an interior motion sensor, which can send notifications to your 'Mercedes Me' app.

The ongoing costs are surprisingly reasonable for a large luxury SUV! Like its rivals the X6 enjoys a five-year/unlimited km warranty.

However, you can pre-purchase a servicing plan for up to five years or 80,000km, whichever occurs first, for a flat $2400. Or an average of $480 per service which is inexpensive for this class.

Service intervals are also good at every 12 months or 15,000km, whichever occurs first. 

Like all new Mercedes models sold in 2021, the Maybach GLS 600 comes with a five-year/unlimited kilometre warranty with roadside assist over that period.

This is class-leading in the premium segment, with only Lexus, Genesis and Jaguar able to match the warranty period, while BMW and Audi serve up assurance periods lasting only three years.

Scheduled servicing intervals are every 12 months or 20,000km, whichever occurs first.

While the first three services will cost owners $4000 ($800 for the first, $1200 for the second and $2000 for the third service), buyers can opt to save some money with a pre-paid service plan.

Under the service plan pricing, three years of maintenance will cost $3050, while four- and five-year plans are on offer at $4000 and $4550 respectively.