Mercedes-Benz GLS-Class vs Porsche Macan

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…

Competent and comfortable, the Macan T delivers that amazing Porsche double act of crisp dynamic response without compromising refinement. It’s well equipped for the price, neatly packaged, and entertaining to drive. But there are holes in its armour. Active safety comes up well short and a three-year warranty now stands out like a sore thumb. It’s good, but could be better.

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.

Michael Mauer has been Porsche’s chief of design for close to 20 years, overseeing the look and feel of every product the brand has produced in that time. And he’s been successful in massaging particular forms and signature elements to work across the line-up. 

For example, you can see more than a hint of 911 in the Macan T (and other models, for that matter), from the elongated four point headlights, to the gentle curve at the rear of the roofline, as well the distinctive tail-light treatment.

Since launching internationally in 2012, the Macan has been tweaked in 2016, before a full-blown refresh in 2021. Mauer and his team have somehow transplanted a Porsche sports car’s stance and personality to this mid-size SUV, which incidentally boasts a drag-coefficient of 0.35 (not bad, but still a fair way off the 911’s 0.29). 

For car-spotters keen to tick the Macan T off their list, the thing to look out for is exterior elements finished in ‘Agate Grey Metallic’. Specifically, the middle section of the front apron, the side ‘blades’ running across the lower section of the doors, the roof spoiler, and the exterior mirrors (including their V-shaped bases).

Then it’s all about high-gloss black on the side window trims, exhaust outlets and parts of the rear diffuser. But the biggest giveaway is the Porsche logo and model designation finished in, you guessed it… Agate Grey Metallic.

In looking at the Macan T’s interior design it’s important to call out our test car’s optional leather trim package ($3280) and carbon interior trim package ($1600), combining to dial up the cabin’s racy, premium feel.

A relatively simple dash design incorporates Porsche’s iconic three-dial instrument layout housed in a compact, curved binnacle. On the right-hand side a 4.8-inch configurable info display takes the place of what would have traditionally been an analogue gauge.

The wide centre stack houses a 10.9-inch media display above (big tick) physical ventilation controls. A sloping centre console is filled with touch controls under a piano black finish. Looks good in the showroom, but fingerprints are its enemy.

The front sports seats feel as good as they look, and overall the design is premium, functional and focused.

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.

At just over 4.7m long, around 1.9m wide, and a fraction more than 1.6m tall the Macan is a large medium-size SUV, but inside it feels more like the former than the latter.

Plenty of breathing space for the driver and front passenger, with a broad centre console dividing the space. Storage is good, too.

The glove box is a handy size, there’s a decent lidded box between the seats (that doubles as a centre armrest), as well as two large cupholders in front of it, and a handy oddments tray just behind the gearshift. Big door bins with space for large bottles are also a welcome inclusion.

Swapping to the back seat, sitting behind the driver’s seat, set to my 183cm position, I had heaps of leg and headroom. There’s even enough room for three full-size adults on short to medium journeys, although the full road trip experience would be too close for long-distance comfort. A trio of up to teenage kids will be laughing. 

For storage there are two cupholders in the fold-down centre armrest, bins with enough room for large bottles (and a bit more) in the doors, and adjustable air vents with temperature control as part of the three-zone climate-control system. No map pockets on the front seat backs, though.

Power and connectivity runs to a 12-volt outlet in the front centre console and another in the boot, as well as a SIM and SD card slot in the front, supplemented by two USB-C jacks in the front and another pair in the rear. 

Speaking of the boot, it’s generous, with 488 litres (VDA) available with all seats up (measured to the upper edge of the rear seats). Fold the 40/20/40 split-folding rear seat and that number grows to 954 litres. Measure volume right up to the roof in that configuration and you have no less than 1503 litres to play with.

The boot space is properly illuminated, there are four tie-down anchors to help secure loose loads, and a small netted space lurks behind the wheel tub on the driver’s side.

Our test car was fitted with the optional adaptive air suspension system ($2790) which allows lowering of the car’s rear when stationary to make shuffling heavy loads into the back easier. And the standard auto tailgate is super helpful.

Maximum towing capacity for a braked trailer is 2.0 tonnes (towbar preparation and ‘Trailer Stability Management’ are standard), and the spare is a space-saver.

With cost-of-entry sitting at $92,700, before on-road costs, the Macan T is positioned just above the entry-level grade in a four model line-up.

And it stacks up against well-credentialed and well-equipped competitors like the Audi Q5 45 TFSI S line Sportback ($90,600), BMW X3 xDrive30i M Sport ($91,900), and Mercedes-Benz GLC 300 ($92,300).

Aside from the performance and safety tech covered later, the standard equipment list includes the often optional ‘Sport Chrono Package’ (including a mode switch and ‘Sport Response’ button on the steering wheel), as well as a 10.9-inch HD multimedia touchscreen, sat nav (with voice control), three-zone climate control, eight-way electrically-adjustable sports front seats (with driver’s side memory), heated front seats, cruise control, as well as keyless entry and start.

Also included is combination leather and ‘Sport Tex’ cloth seat trim (with silver contrast stitching), a leather-trimmed heated GT sports steering wheel, 10-speaker/150-watt audio with digital radio as well as Bluetooth and Apple CarPlay connectivity (no Android Auto, though), a 4.8-inch configurable info display in the instrument cluster, 20-inch alloy rims (finished in ‘Dark Titanium’), LED headlights, tail-lights and daytime running lights, plus an auto tailgate. There’s more, but you get the idea.

Worth noting our test car featured more than $25K’s worth of options. Specifically, a leather trim package ($3280), panoramic roof ($3110), sports exhaust ($3080), adaptive air suspension ($2790), 18-way adaptive sports front seats ($2410), Bose 14-speaker/665-watt audio ($2230), ‘Papaya Metallic’ paint ($1800), tinted LED headlights with ‘Porsche Dynamic Light System Plus’ ($1650), adaptive cruise control ($1620), carbon interior trim package ($1600), lane keeping assist ($1100), high-gloss black roof rails ($650), and Porsche logo door courtesy lights. Total price as tested (before on-road costs) $118,560.  

At that money you’re more in line with the Audi SQ 5 Wagon ($110,400), BMW X3 M40i ($118,900), and Merc-AMG GLC 43 ($129,000). A tough trio to get your nose in front of, but the Macan T still presents pretty well.

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 Macan T is powered by a version of the VW Group’s ‘EA888’ turbo-petrol, four-cylinder engine, used in a host of Audi, Seat and Skoda models, as well as, most-notably, the previous generation VW Golf Mk7 GTI.

The 2.0-litre, all-alloy unit uses a combination of port and direct fuel-injection, plus variable cam timing on the inlet and exhaust side to produce 195kW from 5000-6500rpm, and 400Nm across a broad plateau from 1800rpm right up to 4500rpm. The rev ceiling sits at 6800rpm.

Power goes to all four wheels via a seven-speed dual-clutch automatic transmission and an electronically-variable multi-plate clutch.

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.

Porsche’s official fuel economy number for the combined (ADR 81/02 - urban, extra-urban) cycle for the Macan T is 9.5L/100km, the 2.0-litre four emitting 217g/km of CO2 in the process.

Over a week of city, suburban, and some freeway running we saw a dash-indicated average of 10.2L/100km. A solid, if unspectacular result for a close to 1.9-tonne SUV. 

Auto start-stop is standard, but pricey 98 RON premium unleaded is required, and you’ll need 75 litres of it to fill the tank.

Using the official number that translates to a range of 789km, which drops to 750km using our real-world number.

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.

Porsche claims the Macan T will accelerate from 0-100km/h in a suitably rapid 6.2 seconds and mid-range pulling power is healthy, with maximum torque available from 1800-4500rpm.

Worth noting, however, if you’re looking for ‘special event’ engine and exhaust noise to accompany that progress you may be left wanting more aural oomph. Despite our test car’s optional sports exhaust ($3080), this four-cylinder can’t match the relative drama of the Macan S and GTS’s twin-turbo V6.

The upside of that difference is the 2.9-litre V6 puts an extra 59kg on the Macan’s front axle, so the 2.0-litre T feels lighter and that bit more responsive when the road starts to twist.

Suspension is multi-link front, trapezoidal link rear, and the Macan T is also fitted with stiffer, model-specific sway bars to manage body roll. Ride height is also 15mm lower than the base 2.0L Macan.

Steering is quick, road feel is good, and despite the standard 20-inch rims, ride comfort is excellent. This is Porsche’s long-established, engineering party trick, combining plush compliance with sharp dynamic response, even in a high-riding SUV. That said, the optional adaptive air suspension fitted to our test example, is $2790 well spent.

The drivetrain is set up with a RWD bias, and standard rubber is Michelin’s high-performance SUV tyre, the Latitude Sport 3 (265/45 fr / 295/40 rr). They grip hard while remaining quiet, and the Macan T is an entertaining drive on a quiet B-road.  

Braking is by vented discs all around (350mm fr / 330mm rr) with beefy four-piston alloy monobloc fixed calipers up front and floating singles at the rear. Stopping power is reassuringly strong and progressive, especially important given the car’s 2.0-tonne (braked) towing capacity.

For more adventurous drivers, ground clearance is 187mm, while the approach, departure and ramp angles are a relatively modest 15.8, 15.4, and 21.0 degrees, respectively.

In the less challenging terrain of a shopping centre car park the standard reversing camera and 360-degree surround view make manoeuvring into tight spaces a stress-free operation.

The Macan has been around for 10 years, and despite regular updates it’s starting to give ground to competitors in terms of standard active and passive safety tech. 

With a base price within shouting distance of six figures, you’d expect the Macan T to be at the pointy end of the safety game, but not so.

While crash avoidance features include ‘Lane Change Assist’, ‘Lane Departure Warning’, tyre pressure monitoring, and ‘Park Assist’ (including a reversing camera and 360-degree surround view), other big ticket items are optional extras.

Arguably the biggest is adaptive cruise control (including AEB) at $1620, and ‘Lane-keeping Assist’ for another $1100. Blind-spot monitoring, rear cross-traffic alert and other increasingly common systems aren’t available at any price.

What? It’s as much the principle as the dollars. These things should be standard in a close to $100K Porsche.

If a crash is unavoidable there are eight airbags on-board (driver and front passenger front, front side, rear side, and full-length curtains), but the front centre airbag, increasingly included to avoid head clash injuries in a side impact, is MIA. 

Multi-collision brake minimises the chance of subsequent impacts after an initial crash, and there are three top-tether points for baby capsules/child seats across the rear row, with ISOFIX anchors on the outer positions.

For the record, Porsche doesn’t submit its cars for ANCAP (or Euro NCAP) evaluation, and so far the independent body hasn’t raided the piggy bank to purchase one for assessment.

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.

Porsche is the last brand standing in the local mainstream sports luxury market, offering a three-year, unlimited kilometre warranty when the rest of the segment has moved on to five-year, unlimited km cover. 

The good news is paint is covered for three years and a 12-year (unlimited km) anti-corrosion warranty is included (the Macan’s body is fully galvanised). 

Porsche Roadside Assist provides 24/7/365 coverage for the life of the warranty, and after the warranty runs out is renewed for 12 months every time the vehicle is serviced at an authorised Porsche dealer.

Servicing is required every 12 months or 15,000km, which is less in terms of mileage than some others in the category.

With Porsche, final costs are determined at the dealer level (in line with variable labour rates by state/territory), but indicative pricing for the first five years is: 12 months/15,000km (annual) - $695, 24 months/30,000km (inspection) - $1300, 36 months/45,000km (annual) - $695, 48 months/60,000km (inspection) - $1300, 60 months/75,000km (annual) - $695. Not exactly cheap, but not outrageous in this part of the market.

A brake fluid flush is recommended every two years ($290), as well as spark plugs ($450), air filter ($200), and transmission fluid and filter ($850) every four years. So, be ready for those ‘extras’.