Mercedes-Benz GLS-Class vs Volkswagen Touareg

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…

A car as impressive as it is frustrating, the Touareg R is a vehicle for a very specific buyer. Someone whose daily commute consists of limited distances, someone who can always charge at home overnight and someone who appreciates the subtlety of the performance and luxury the Touareg brings.

For everyone else - there are better options. Performance-focused PHEVs can be tricky to charge and extract the full benefit from, and at this price you have access to some serious performance-oriented combustion SUVs or the choice of going fully electric.

While this R-badged VW might be the most mind-bending of the lot then, it also has the most 'specific' appeal.

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.

The Touareg, as always, screams big Volkswagen. It’s more subtle than the Porsche Cayenne and Audi Q7 with which it shares its underpinnings, yet looks as slick as either up close.

It’s defined in its face by a massive black grille, integrated light fittings, and as usual with Volkswagen, some pretty subtle highlights and tail-lights in attractive LED patterns.

The wheels sell the vibe of an R. They’re enormous and gloss black, matching the theme and style of its smaller siblings, black highlight trims replace chrome or body colour bits to set it apart from the rest of the range.

It doesn’t look quite as modern as something like Kia’s Sorento or EV9, and it doesn’t look as elegant as the Volvo XC90 or as defined as the Land Rover Defender, all in the same price bracket.

This helps the Touareg maintain a certain mainstream appeal, and a sporty edge, without being too egregious.

Still, some might want some more overt visual flourish to indicate they’re driving a vehicle which is capable of sprinting to 100km/h from a standstill in 5.1 seconds.

Perhaps I’m in a different camp, one which appreciates the ‘sleeper’ nature of a giant family SUV capable of incredible driving feats when pushed.

Inside is always a pleasant surprise in a Touareg. While it might be the most affordable of the giant SUVs on this platform, it maintains the air of luxury and plush nature of its more expensive counterparts from Audi and Porsche.

You’re met by nicely trimmed leather seats and a chunky VW R steering wheel, massive screens and lavish amounts of padded leather surfaces everywhere. It feels every bit the luxury SUV the price indicates, in case you were worried you’d be getting something which feels more like a T-Roc than an Audi. For what it’s worth I quite like all the Volkswagen switchgear.

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.

It’s a big SUV with big interior dimensions. It feels spacious and wide on the inside with a large centre console area for spreading out and a highly adjustable driver’s seat.

The seats are plush and comfortable, and visibility is pretty solid out of the cabin. Again, you're greeted by excellent touchpoints, from the steering wheel to the door cards and there’s even lashings of padded leather trim down the sides of the centre console for your knee to rest on.

Volkswagen’s screens are usually some of the best in the business and that continues here. They’re bright, sharp and served up with attractive and mostly functional and easy-to-navigate software.

The hardware behind them is also enough to keep them lightning fast when reacting to inputs, with satisfyingly smooth animations, too.

The one thing I like a bit less is how a few of the menus can be confounding. It took me a while to figure out I needed to set the default battery level higher than its current charge to get the engine to stay on, and I’d also love a button to simply switch between EV and hybrid mode.

In fact, the lack of buttons is one of the major issues in this car. Sure, the enormous centre screen is an impressive feature, syncing up with the dash design nicely, but you’re also forced to negotiate with touch elements for key climate functions. No matter how fast or slick the software is, there’s no compensating for a toggle or dial you can easily reach while you’re focused on the road.

For what it’s worth, the wireless Apple CarPlay worked seamlessly with the car in my time with it (and looked good too) while the wireless charger is rubberised and in a good location so your phone will be able to at least maintain its state of charge on the go.

Storage is plentiful up front, with large pockets with integrated bottle holders in each door, a large dual cupholder set-up in the centre console with variable edges and a large armrest console box.

In the back seat I have enough room for myself behind my own driving position at 182cm tall. It’s plenty wide and tall, but I don’t feel as though I had an enormous amount of legroom considering the size of the vehicle.

Still, the width will give you space for three adults across in relative comfort. Yes, there’s a large raise in the floor in the centre position to accommodate the all-wheel drive hardware underneath, but the width of the floor should allow a centre passenger to put their feet on either side.

Big door openings and the wide cabin make for easy child seat fitting, and there's even built-in window shades alongside two rear climate zones with physical controls, large bottle holders in the doors and a drop-down armrest, with some flimsy nets on the backs of the front seats to round things out.

Boot space is allegedly enormous at a quoted 810 litres, but the shape of it is less than ideal. Sure it’s nice and wide and oblong shaped at the base, but the rake of the boot quickly eats into the amount of height available, making it tricky to fit larger objects.

The space accommodated our CarsGuide three-piece luggage set with ease, but it didn’t leave much room to spare. It doesn’t feel like it’s double the 400 litre space typical of a one size-down SUV. 

There’s also a needlessly complex two-piece shelf, which lifts with the tailgate, but the boot wouldn’t completely close with the luggage set present unless you removed it. To the Touareg’s credit, the second row seats hinge forward significantly to expand space by a fair bit.

Under the floor there’s only a repair kit, as the huge PHEV battery takes up the rest of the space. A decidedly less than ideal flat tyre option.

Is the Touareg R good value? Seems like a silly question doesn’t it?

One school of thought says, of course it isn’t. Nobody needs a giant $129,990 (before on-road costs) SUV which is this fast. What the halo Touareg variant has always offered is excess with a modest exterior wrapper.

On the other hand, the Touareg R is great value when you consider you’re getting much the same hardware as a Porsche Cayenne S E-Hybrid ($188,600) with a Volkswagen badge.

In its size and price-bracket, the Touareg R directly rivals the Land Rover Defender 110 PHEV ($126,184), Lexus RX HEV ($127,434), Range Rover Velar PHEV ($131,536) and Volvo XC90 Ultra T8 PHEV ($128,390).

I see two problems with this. Firstly, all of those price rivals are premium brands, and secondly, at the circa-$130K price-tag there’s also the awkward reality you could be choosing one of a few very appealing fully-electric options, from the Kia EV9 GT-Line ($121,000), to the Polestar 3 ($131,054), Mercedes-Benz EQE ($134,900) and BMW iX ($136,900).

So, it’s great value from one perspective, but not so much from a few others. Then again, this is the biggest, baddest Volkswagen you can currently buy, so whether you’re in the market for an R-badged car or a PHEV of this size, you’re likely familiar with a six-figure price-tag.

Do you at least score good equipment for the money? Aside from all the complex drivetrain hardware, this VW is an impressive place to be, with extensive plush leather interior trim in the seats and doors, power adjust for the front two positions with heating and ventilation, a 12.0-inch digital dash with Volkswagen’s slick-as-ever digital cockpit software, a head-up display, a massive 15.0-inch multimedia touchscreen (with wireless Apple CarPlay and Android Auto), matching wireless phone charger and quad-zone climate control.

Outside, there’s the brand’s signature matrix LED headlights, massive gloss black 22-inch alloy wheels, enormous ventilated disc brakes and a sports exhaust with air suspension hiding below.

It’s a lot of kit for a mainstream SUV, and performance, which we’ll talk about later, is impressive (with a few caveats). 

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 Touareg offers a performance-focused plug-in hybrid (PHEV) drivetrain. Usually this means a little turbo four-cylinder engine and an electric motor, but instead this big SUV offers a 100kW electric motor and a 3.0-litre V6 turbo-petrol engine which combine for a whomping “total system power” of 340kW/700Nm.

This allows a 0-100km/h sprint time of just 5.1 seconds. Power is sent to all four wheels via an eight-speed automatic transmission and Torsen central differential. Up to 70 per cent of power can be sent to the front wheels, with up to 80 per cent of power going to the rear.

It is capable of driving at up to 135km/h under electric power alone, with the V6 kicking in beyond that speed.

It’s a rare set-up for two reasons. Firstly, it’s a plug in which maintains a large six-cylinder engine, and it runs even electric power through the transmission to all four wheels.

Some PHEV rivals, for example, use front combustion-drive only with no mechanical connection between the engine and the rear axle, which is driven purely electrically.

When it comes to towing specs, the Touareg offers solid official figures of 750kg for an unbraked trailer and 3500kg braked, although the maximum towball download is 220kg.

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.

Like other plug-in hybrids, the official combined (urban/extra-urban) cycle fuel efficiency number for the Touareg R is an eyebrow-raisingly low figure which you know won’t be achievable in the real world, but is probably technically feasible in lab-style conditions. 

In this case, it’s 3.3L/100km. When I picked up the car it had a low charge level, and the next day I was able to top it up to just 50 per cent because I don’t have a power point in my garage, and the achingly slow 3.6kW maximum AC charging speed is severely limiting if you need to rely on the public network, as the 17.9kWh battery is relatively large.

This should bring you to the obvious conclusion the Touareg R is not a good hybrid if you can’t charge at home, as you’ll never extract the full benefit of the electric set-up. Perhaps adding evidence to this is its official energy consumption which comes in at a painful 21.1kWh/100km.

As for hydrocarbons, in my week of driving (in which I tried to pick up charge wherever I could) I saw over 14L/100km. Makes sense for a heavy petrol V6 SUV. I’d say you’re likely to see a figure like this on a longer journey or if you drive it with enthusiasm as the R badge encourages. To add additional pain, it requires 98RON premium unleaded fuel.

With a realistic maximum pure-electric range of closer to 40km compared to the official WLTP-rated 51km (more on this in the driving section of the review), the R is also best for people whose daily commute is relatively short.

I can’t imagine, for example, the best benefit of this car will be extracted from someone who lives in the urban sprawl and commutes to the city every day with distances in excess of 50km for a return journey.

Additionally, the hybrid mode is very EV-heavy, draining the battery relatively quickly unless you manually put it in preservation mode.

For nerds who could be bothered, this mode is potentially a nifty feature allowing retention of some EV range at the end of a long freeway journey. But it takes a certain buyer to even be bothered with this.

Can you see why plug-less hybrids are the Australian new car buyer’s electrification configuration of choice?

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.

Here’s where things get a bit frustrating, and your experience will vary dramatically depending on how you use this car.

One thing we can get out of the way immediately is the Touareg is deeply technically impressive when you attack a few corners. Its immediate electric thrust is capable of propelling this large object forward with eye-widening speed, and the air suspension, wide grippy tyres, Torsen centre differential and tidy steering tune conspire to make it mind-bending to carve corners in.

It’s flat, stable, and far more accurate and agile than expected. The only hint as to the sheer physics of wrangling the Touareg around bends is the tyres screaming out in agony as the suspension and all-wheel drive system work their magic to keep it all under control.

Once the electric torque pushes you out from the corner, the deep satisfying thrum of the 3.0-litre petrol V6 quickly takes over as you lurch forward on the almost fluid-feeling suspension. It’s laugh-out-loud satisfying and certainly enough to capture passengers' attention.

In this sense, the R fulfils its mission of transforming the big Touareg into a handling and acceleration hero, but despite all the cleverness it doesn’t feel as sharp or lean as the Golf R, T-Roc R or Tiguan R.

There’s still a massive battery, as well as huge complexity and weight to deal with, no matter how technically fast it is. There’s always the unsettling feeling of this amount of weight moving around, and the occasional slight delay from the transmission as it figures out what’s going on between the electric motor and big engine.

Then there are the compromises. Normally, I’m a huge fan of how plush and luxurious the Touareg feels. It’s usually such a step above its station in the VW Group, occasionally even feeling preferable to its platform relations, but the R has some issues.

For a start, the enormous 22-inch wheels and low-profile tyres ruin the day-to-day ride quality, crashing over bumps and road imperfections, despite the fact there’s also air suspension supposedly providing a buffer between you and the tarmac.

Even in the more comfort-oriented drive settings you can hear and feel every bit the moment the wheels contact a pothole or bump. Clearly, it’s tuned more toward handling than maintaining the same luxury feel as the rest of the range.

The transmission is also occasionally hesitant, either from a standing start or when switching between electric thrust and the engine. This is much better when the battery is charged up from the reserve level, as there isn’t enough charge when driving around as a hybrid to push a big, heavy (and always) all-wheel drive very far.

But hybrid driving is also frustrating, for reasons mainly related to the software. With the battery charged, the 51km of claimed driving range feels a tad ambitious. I was able to charge it to about 50 per cent (the battery is huge, at 17.9kWh, and I could only pull about 3.5kW from a local AC charging unit) and scored about 20km of driving range.

It drains quickly, even in the hybrid driving mode, as it relies on the electric motor a lot for initial take-off.

This means unless you set the battery preserve mode manually in the hybrid settings screen, it will likely run the battery dry before you’re even able to get it somewhere where it can take full advantage of the extra electric thrust.

As an electric vehicle it’s also only alright. The short time I was able to spend in full EV mode proved the battery will drain faster than advertised, and the regen is so-so for assisting in braking.

Other more performance-focused PHEVs suffer the same issue. For example, I felt largely the same way about the much-maligned four-cylinder PHEV Mercedes-AMG C63.

While hybrids like this may be impressive when conditions are ideal, they’re ultimately frustrating to use in reality. It’s a shame, because I wanted to like it more but it doesn’t quite capture the same magic of its R-badged forebears and siblings.

All of the safety kit is standard and present on the Touareg R, including autobahn-speed auto emergency braking, lane keep assist with lane departure warning, front and rear cross-traffic alert, blind spot monitoring, road sign recognition, driver fatigue detection, a surround view camera and adaptive cruise control.

The best part is these systems not only work, but they’re well calibrated so they generally don’t interfere with the core driving experience.

Additionally, the Touareg has a suite of eight airbags and maintains a maximum five-star ANCAP safety rating achieved in 2018.

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 standard five year, unlimited kilometre warranty features with one year of complimentary roadside assistance provided (renewed for another year with each service at an authorised dealer).

Servicing is required once every 12 months or 15,000km and the most affordable way to do it is with pre-packaged service plans bundled in with purchase. These come in at $3400 for five years (a saving of $668 over the a-la-carte program) or $2050 for the three year plan (a saving of $222).

Even in its most affordable form this makes servicing average $680 a year which is a far cry from most affordable brands, but it could be worse considering the complexity of the powertrain.