Skoda Octavia vs Mercedes-Benz GLS-Class

What's the difference?

While other brands may have a higher profile, the quality of this Octavia RS proves Skoda deserves a greater share of the limelight. If you’re thinking about a primo mid-size sedan, or wagon, or even a medium SUV, this car combines satisfying performance with low-to-the-ground dynamics, immense practicality, top-shelf safety and solid value-for-money. It’s nicely put together using quality materials and the ownership package is class competitive. Do yourself a favour and add it to your new-car shopping list.

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

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 current Octavia complies with Skoda’s sharp and angular approach to exterior design, with cool, jagged LED headlight clusters sitting either side of a blacked-out octagonal grille.

A brand signature is the bonnet shutting low and flush over the front guards to create a broad hood panel with longitudinal character lines running down its length. Similar creases flow confidently along the car’s flanks with 19-inch alloys filling the wheel wells nicely.

A smoothly tapering turret ends with a steeply raked rear screen on the sedan and wagon with angular LED tail-lights following a similar pattern to the headlights.

As well as the black grille, car-spotters should look out for the RS’s black finish on the window frame surrounds, roof rails (wagon only) wing mirrors and tailpipes as well as red brake calipers and RS sports bumpers front and rear.

Always a subjective call, but I for one think this car looks distinctive and contemporary while avoiding unnecessary flashiness.

Inside, the treatment is relatively reserved, with a grey through to black colour palette and high-quality materials, including soft-touch surfaces around the dash, doors and console, as well as ‘mouse fur’ and faux carbon sections on the upper dash.

The sports front seats are trimmed in a combination of synthetic leather and synthetic suede with quilted panels in the centre of the cushion and backrest. They feel as good as they look and are easy to get in and out of. Red contrast stitching throughout the interior dials up the racy tone.  

A sizeable central media touchscreen sits proud of the dash with the VW Group’s ‘Virtual Cockpit’ ahead of the driver configurable through multiple set-ups. And a smattering of dark chrome and brushed metal highlights (including on the pedals) finish off a beautifully executed interior.  

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.

Practicality is an area where Skoda comes into its own. At every turn the brand’s design and engineering teams have obviously kept day-to-day usability in mind with thoughtful tweaks to make life easier.

Some have become low-key famous like an umbrella slotted into the driver’s door (Rolls-Royce-style) and a small lidded rubbish bin in the driver’s door pocket.

But over and above that, the Octavia’s efficient packaging means in a car measuring just on 4.7m long there’s heaps of room up front for the driver and passenger, with lots of handy storage options. 

Aside from generous door pockets there’s a box between the seats with a padded lid (adjustable for height and length when in use as an armrest), a 15W wireless charging pad (with ventilation from below to keep devices cool), a big glove box (with pen holder), multiple cupholders, a cupholder insert able to hold a phone and/or some coins, numerous oddments trays and a sunglasses compartment overhead (not fitted with optional panoramic sunroof).

And in the back, sitting behind the driver’s seat, set for my 183cm height, there’s tons of leg and headroom with more practical design thinking on display.

For example, map pockets on the back of the front seats have a phone-sized slot stitched into them. There are pull up shades for each window, big bins in the doors with plenty of room for bottles and more, a pull-down centre armrest with fold-out cupholders (plus some oddments space), adjustable climate control vents plus a box on the floor for extra bottles and ‘stuff’ (removable if you need foot room for a centre passenger).

Power and connectivity runs to five USB-C sockets (two front, two rear and one near the rear-view mirror for dashcam duty) plus a 12-volt outlet in the boot. 

Speaking of which, head to the boot and the ‘plenty of room’ theme continues. With the 60/40 split folding rear seat upright there’s 600 litres of space in the sedan and 640 litres in the wagon. Lower the backrest and that number increases to 1555 and 1700 litres, respectively. That’s plenty, and more than the Mazda6.

The sedan and wagon feature anchor points for securing loose loads, extra storage bays behind the rear wheel wells, there’s a ski-port door behind the rear armrest, load divider rails in the sedan, remote release handles for the rear seat, bag hooks, a luggage net… the lot. 

The powered tailgate includes hands-free opening, there’s a space-saver spare under the floor and towing capacity for a braked trailer is 1600kg (750kg unbraked).

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.

Priced from $255,700 plus on-road costs, the GLS63 commands a $34,329 premium over its predecessor, although buyers are arguably getting more bang for their buck than before, even if it does sit well clear of the two other GLS variants: the $147,100 GLS450 and $153,900 GLS400d.

Standard equipment not already mentioned in the GLS63 includes regular metallic paintwork (our test vehicle was finished in Selenite Grey), dusk-sensing lights, rain-sensing wipers, power-folding side mirrors with heating, soft-close doors, roof rails, rear privacy glass and a power-operated tailgate.

Inside, keyless entry and start, augmented reality (AR) satellite navigation with live traffic, digital radio, a 590W Burmester surround-sound system with 13 speakers, a head-up display, a panoramic sunroof, heated seats (including middle outboard) and armrests, cooled front seats with massaging functionality, power-adjustable seats, a power-adjustable steering column, temperature-controlled front cupholders, five-zone climate control, stainless-steel pedals and an auto-dimming rearview mirror feature.

With BMW not offering an X7 M (although the slightly smaller $209,900 X5 M Competition is available) and the $208,500 Audi RS Q8 really from the segment below, the GLS63 does not have a direct rival in the Upper-large SUV segment.

In fact, the $334,700 Bentley Bentayga V8 is actually the model that comes closest to the GLS63 when looking for a seven-seater with a similar level of bent-eight performance.

The Octavia RS is designated ‘195TSI’ which relates to the power output of its 2.0-litre, four-cylinder, turbo-petrol engine driving the front wheels through a seven-speed dual-clutch auto transmission.

It’s a fourth-generation evolution of the Volkswagen Group’s long-serving ‘EA888’ engine series, an iron block/alloy head unit featuring direct-injection and variable valve timing to produce (you guessed it) 195kW and 370Nm.

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 Octavia RS’s official fuel consumption figure on the combined (urban/extra-urban) cycle is 7.0L/100km, the 2.0-litre turbo-petrol engine emitting 159g/km of CO2 in the process (wagon 160g/km).

A start/stop function is standard and on a launch drive program through rural Victoria, covering several hundred kilometres’ worth of urban, B-road and freeway running we saw a (dash-indicated) figure of 6.9L/100km. With a 50-litre fuel tank on board, the RS’s theoretical range is around 715km.

In the city, expect an average in the high 8.0 range, which isn’t out of order for a 1.5-tonne sedan (1.6-tonne wagon).

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.

Skoda claims 0-100km/h acceleration in 6.4 seconds for the Octavia RS sedan and 6.5sec for the wagon and it feels willing with solid mid-range punch available. 

Peak power comes on stream up high (5250-6500rpm) but maximum pulling power is on tap from 1600-4500rpm, which is spot-on for urban running, easy highway cruising and safe overtaking.

A sports exhaust dials up a rorty note when pushing on and the seven-speed dual-clutch transmission proved quick and smooth on a launch drive covering mainly rural B-roads and some freeway sections.

Steering wheel-mounted paddles add extra involvement when you’re in the mood to push through some twisty stuff and select ratios manually.

Speaking of corners, suspension is by struts at the front and a multi-link arrangement (unique to the RS grade) at the rear, with an electronically controlled limited slip differential and ‘Dynamic Chassis Control’ standard. Ride height is 15mm lower than the standard Octavia.

DCC is Skoda code for an adaptive damper set-up and the system offers a ‘Comfort’ mode to help manage bumps, although it adds an air of floatiness on the open road. As the name implies, ‘Sport’ buttons everything down and road imperfections immediately make their presence felt. ‘Normal’ is surprisingly comfortable without upsetting the car’s balance and overall compliance. 

Standard rubber is 225/40 Bridgestone Potenza S005, providing a good grip vs comfort compromise, and the electrically assisted progressive rate rack and pinion steering is accurate, providing good road feel without being too sharp or ‘pointy’. Braking is by ventilated discs all around and the pedal is strong and progressive.

Under the heading of miscellaneous observations, engine, wind and road noise are modest, the grippy sports front seats remained comfortable over several hours behind the wheel, plus a relatively tight 10.4m turning circle and standard 360-degree camera view system make parking easy.  

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.

Neither ANCAP nor its European counterpart, Euro NCAP, have awarded the GLS range a safety rating, but it’s fair to assume it would perform well in testing.

Advanced driver-assist systems in the GLS63 extend to autonomous emergency braking with pedestrian and cyclist detection, lane-keep and steering assist (including emergency), adaptive cruise control, active blind-spot monitoring, rear cross-traffic alert, traffic sign recognition, driver attention alert, high-beam assist, tyre pressure monitoring, hill-descent control, hill-start assist, park assist, surround-view cameras and front and rear parking sensors.

Other standard safety equipment includes nine airbags (dual front, front-side, curtain and rear-side plus driver’s knee), anti-skid brakes (ABS), electronic brake-force distribution (EBD) and the usual electronic stability and traction control systems. Yep, it doesn’t leave much to be desired on the safety front.

The Octavia is covered by Skoda’s seven-year/unlimited kilometre warranty, which is ahead of the mainstream five-year warranty pack, although a little short of some, like MG and Mitsubishi at 10 years.

Service is recommended every 12 months/15,000km and a four-year/60,000km service pack will set you back $2000, with 12 months’ roadside assistance topped up for another year after each trip to an authorised workshop.

That $500 per service charge is a solid amount but not outrageous for a premium, especially Euro, mid-sizer. For reference the Mazda6 20th Anniversary averages $552 per service over the same period.     

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.