Mercedes-Benz G-Class vs Toyota Supra

What's the difference?

The Mercedes-AMG G 63 isn't for shrinking violets. It's bold, fast, and loud, and in second-generation form massively improved dynamically and technically. It's a lot of money, but there's a lot to love, and here's hoping it stays around for decades to come.

The Toyota GR Supra GT is a superb sports car that’s relatively easy to live with in the city even with the manual gearbox and incredibly fun to drive out where the roads are free from traffic.

Not only is the GT great for the price compared to rivals but it’s the pick of the Supra range.   

The original (W460) G-Glass, then known as the G-Wagen (or Geländewagen for cross-country vehicle), was launched in 1979 as an ultra-capable off-roader, soon favoured by armies the world over. Arriving here in 1982, its distinctive, slab-sided form remained unchanged over the best part of four decades.

At close to 4.8m nose-to-tail, more than 1.8m across, and a bit over 1.9m tall, the G 63 is now longer (+110mm), wider (+106mm), and fractionally lower overall (-13mm), but still pulls off a convincing impersonation of a bread box.

Merc-AMG confidently quotes a drag coefficient (Cd) of 0.55 for the G 63, which isn't as bad as a brick (around 2.0… I Googled it) although it is in the same league as a heavy truck.

But it's the car's unique, upright stance, complete with pumped wheelarches and old-school flat glass, that sets it apart and draws people in. Looking more like a take-no-prisoners, functional device than a luxury cruiser, I can assure you it attracts as many admiring looks and comments as a low-flying supercar wedge.

The new-gen G 63 features AMG's vertically slatted 'Panamericana' grille, and our test example was fitted with the optional 'Night Package' ($5900) adding a range of dark exterior details including tinted indicator lenses, dark tinted glass, black exterior mirror shells and spare wheel ring, other black trim pieces and painted areas, as well as 22-inch AMG forged alloy rims.

Also worth noting, Merc has retained the G-Class's solid metal door handles, complete with the mechanism's unmistakable 'click-clack' opening and closing sound. Nice touch.

Inside, the biggest change is the upgrade from a conventional dual-gauge instrument cluster and central media stack to a pair of 12.3-inch digital screens, forming a sleek widescreen display, and bringing the G 63 in line with other recent Merc offerings.

Similarly, the gearshift moves from a traditional console-mounted set-up to Merc's 'Direct Select' lever on the steering column (exactly where the indicator stalk is located in 90 per cent of right-hand drive cars).  And the standard flat-bottom, leather-trimmed 'AMG Performance' steering wheel is a racy addition.

Like the exterior door handles, another tip of the hat to the car's heritage is retention of the horizontal grab handle ahead of the front passenger on the dash above the glove box. Nice to have something to hold on to if the going gets rough.

Perhaps it’s just me but I think the Supra looks exactly how it should look - like a Hot Wheels car.

Seriously, how good does the back view look? I love the spoiler that angles up like a crazy ski jump and the tail-lights integrated underneath it.

I love the huge rear hunches swollen like they’ve been stung by an enormous wasp. Check out the roof - see how it’s curved? And that bonnet with the vent above the wheel arches, I love the styling of every millimetre of this car.

But my neighbour doesn’t. I pulled up and said, “How good does this look?” And he gave me this stare like I was bonkers.

I don’t know, maybe you and I have the same excellent taste, but if there’s anything I hate it's anything that’s boring.

To me the BMW Z4 ‘twin’ is getting very close to the boring end in the styling department. 

Talking of BMW, the Supra's interior is very BMW from the indicators stalks to the media system and climate control set-up.

It’s a modern and minimalist cabin… if only there wasn’t a cupholder right where my elbow goes. That’s a good place to stop and talk about the Supra GT’s practicality. 

The G-Class has never been a particularly squeezy proposition for passengers or cargo, but an extra 40mm in the wheelbase adds even more breathing space.

Getting in is the first step, and it's a big one. At 183cm tall, in an athletic mood, I could grab the A-pillar and swing up into the driver's seat in one vaguely respectable movement.

But, those side steps aren't just for show, and at the end of a long day provide a handy staging camp between terra firma and the lofty pilot's chair.

Once on-board there's plenty of room up front, with adequate storage including a bin between the seats (now with a double door opening rather than a single hinged lid), a modest glove box, oddments space and two cupholders in the centre console, and bins with space for bottles in the doors.

There's a 12-volt power outlet in the front, second row and cargo area, while there are two USB ports in the centre console bin and a charging USB port in the second row.

In the back I could have donned a dusty Akubra and still had headroom to spare, with generous foot room, and a substantial gap between my knees and the driver's seat (set to my position).

A fold-down armrest incorporates a pair of cupholders (as well as a through-port to the cargo space for long items) and there are map pockets on the front seat backs as well as space for bottles in the doors. Two adjustable air vents in the rear of the front centre console, and another pair in the B-pillars also provide climate-controlled air to those in the rear.

With the rear seats upright boot volume is quoted at 454 litres (VDA); enough to easily swallow our three-piece hard suitcase set (35, 68 and 105 litres) or the CarsGuide pram, or a largest-suitcase-and-pram combo.

There are tie-down shackles in each corner of the floor, usefully bright lighting, a netted storage area on the passenger side (containing five fluorescent emergency vests), and folding the 60/40 split rear seat liberates even more space.

Unfortunately, gaining access to that load space is fraught with compromise. First, the single-piece rear door hinges vertically and opens from right to left. No problem when you've nosed into a shopping centre space, but not so great when you're parking nose-to-tail on the left-hand side of the road.

That means you typically have a small space between you and the car behind to get the door open, and when it is at 90 degrees, you're blocked from unloading things onto the footpath until you've shut the door.

As well as that, the door has a full-size spare (alloy) wheel and tyre attached to it. Good because a full-size spare is welcome, and bad because it makes the already bulky door even heavier.

Those keen on towing things will be pleased to hear the G 63 is rated to haul up to 3.5 tonnes of braked trailer and 750kg unbraked.

The good news is that if you’re tall like me (189cm) and mainly legs then you’ll have more than enough legroom and headroom because the footwells are impossibly deep and the seats can be lowered to what feels like ground level.

Actually, you are almost at ground height in this car so the bad news if you’re as tall as me you’ll probably have to crawl out of the car on all fours.

The cabin of the Supra doesn’t do the storage space thing well. Sure there are two cupholders but their location is the same place my elbow frequents while changing gears and resting.

The wireless phone charging area is good and easy to access, but the door pockets are as thin as post box slots so if it’s letters you’re storing there you’re in luck.

If it’s anything thicker than that you’ll be left looking around for a place to put your purse or wallet and end up throwing it in the phone charger space if the passenger seat is taken.

You could always ask your co-pilot to hold onto your things which reminds me to tell you that the Supra is a two-seater only. There are no back seats, and there’s no option to have back seats.

If you’re looking for a sports car with rear seats (although space will be limited) for the same money then there’s the Audi A4 45 TFSI and at an even lower price is the Ford Mustang GT.

If you look over your left shoulder while in the driver’s seat of the Supra GT you’ll see into the boot -  there’s no wall separating the cabin from the cargo area. This is handy for throwing a school bag in as I did for my son on the morning drop off, but also means your items may make an unexpected visit to the cockpit if you stop suddenly.

The boot is large for a sports car at 296 litres (VDA) and it managed to fit our large CarsGuide suitcase with space to spare as you can see in the images.

The Toyota GR Supra GT with the manual gearbox lists for $87,380 and you’ll pay the same price for the same car with the automatic transmission. 

Yes, almost $90K might sound like a lot of money for a Toyota (unless it’s a LandCruiser) but it’s actually a bargain considering the GTS grade above costs $10K more and has the same engine plus pretty much the same features apart from a fancier stereo, head-up display and 19-inch alloys (rather than the 18s on this GT).

Also, if you didn’t know already the Supra is a BMW/Toyota joint venture model aligned with the BMW Z4, and if you want the Beemer version with the same engine as the Supra GT you’ll pay $139,800 for it.

So see, it’s a bargain in comparison.

The standard features list of the GT has pretty much everything you need. There’s a proximity key, LED headlights with adaptive high beam, active cruise control, sat nav, wireless Apple CarPlay and Android Auto, a 10-speaker stereo, wireless phone charger, heated and power adjustable seats, shifting paddles and sports pedals. 

Great features, but let down only by a small 8.8-inch screen for your media and nav. Still, that absolutely shouldn’t be a deal-breaker for you.

The rivals? Well, clearly the BMW Z4 which is way more expensive, but also there is the Nissan Z which costs between $70-$80K and is also a hoot to drive.

Add the Ford Mustang GT to your research list, as well. It’s not as agile as the Supra but it’s quick, fun and sounds better to my ears. 

The G 63's 4.0-litre (M177) all-alloy V8 is closed deck design using direct-injection and a pair of twin-scroll turbos to produce 430kW at 6000rpm and no less than 850Nm from 2500-3500rpm. That's 10kW/90Nm more than the 5.5-litre twin-turbo V8 it replaces!

To improve throttle response and optimise efficiency, the turbos are located inside the engine's 'V', improving air flow and shortening the distance from the exhaust side to the turbos, and in turn, from the turbos to the inlet side.

And the housings on the twin-scroll turbos are divided into two parallel flow channels connecting with separate ducts in the exhaust manifold, allowing fine management of the exhaust gas coming in and pressure going out. Result is more torque and even better response times.

Drive goes to all four wheels via a new 'AMG Speedshift' nine-speed, dual-clutch auto (replacing the previous seven-speed auto transmission) with paddle shifters and a multiple downshift function which will go to the lowest ratio possible as you keep squeezing the shift paddle.

The 'AMG Performance 4Matic' all wheel drive system is front/rear biased 40/60 (50/50 in the previous model), although if you want to head off-highway the G 63 still features three 100 per cent diff locks and low-range off-road gear reduction.

You’re looking at a Supra that could be the peak of its model evolution because since the generation’s arrival in 2019 Toyota has increased the power of the 3.0-litre turbo-petrol in-line six-cylinder from 250kW to 285kW (torque remains the same at 500Nm) and introduced a six-speed manual. 

This 3.0-litre six-cylinder turbo-petrol is the only engine you can have with the Supra, there are no four cylinders or V8s - now there’s an idea. 

Toyota says the 0-100km/h time for the GR Supra with the manual gearbox is 4.4 seconds and 4.1 seconds for the automatic which comes with a ‘launch control’ feature.

Of course, all Supras are rear-wheel drive.

Claimed fuel economy for the combined (ADR 81/02 - urban, extra-urban) cycle is 13.1L/100km, with the 4.0-litre, twin-turbo V8 emitting 299g/km of CO2 in the process.

Despite the fact cylinder management tech means the engine will run on four cylinders under light load, and start-stop (with 'glide mode') is standard, we managed 16.7L/100km (measured at the bowser) over a mix of city, suburban and freeway running. To be expected for such a big bus, especially one that constantly tempts you into squeezing the throttle just to hear the exhaust bellow.

Minimum fuel requirement is 98 RON premium unleaded, and you'll need 100 litres of it to fill the tank.

Toyota says the 3.0-litre six-cylinder straight-six turbo-petrol engine in the Supra GT paired with the six speed manual gearbox should use 8.9L/100km after a combination of open and urban roads.

I did a week’s worth of city commuting and then a couple of hundred kilometres on country roads, but no motorways and the trip computer told me I was averaging 10.3L/100km.

Not bad for a big engine in a car tuned for performance, driven by a big kid who feels like he’s playing with somebody else’s toys.  

Premium 95 RON fuel is recommended, although 'standard' 91 is acceptable. A 52-litre fuel tank translates to a theoretical range of around 580km, dropping to approximately 500km using our real-world number.

Let's cut to the chase. The G 63's pure grunt overpowers its challenging aero profile to thrust this boom box on wheels from 0-100km/h in a claimed 4.5 seconds. And believe it or not, despite its greater length and width, it has enough power to punch a 240km/h hole in the air (maximum velocity is limited to 220km/h if you choose not to opt for the 'AMG Driver's Package').

The new electronic architecture brings with it the latest version of Merc's 'Dynamic Select' system with five driving modes adjusting the engine, transmission, suspension, steering and assistance systems right up to maximum attack Sport+ mode.

All 850Nm of peak torque is available between 2500-3500rpm and pinning the throttle anywhere in that band feels like lining up a runway and preparing to rotate for take-off.

The two-stage exhaust flap arrangement allows you to turn the noise up from growl to roar even at modest around town speeds, and the nine-speed transmission is sharp and positive, with the multiple downshift function (in manual mode) hilariously good fun.

The racy AMG sports seats are as grippy as they are comfortable, and the fat 295/40 Goodyear Eagle F1 rubber, wrapped around the optional 22-inch forged alloys, does a good job of keeping all that mass and momentum in control as the high riding G 63 careens around corners.

And speaking of mass, the job of hauling it from warp speed to rest sits with big ventilated discs all around (cross-drilled 400mm front/370mm rear), clamped by monster six piston calipers at the front and single piston at the back. They're progressive and reassuringly powerful.

So, the performance is as dramatic as ever, but when I think of previous Merc-AMG G-Class offerings, two main shortcomings come to mind... steering and ride.

The steering was like a laggy mouse, with a few beats separating input at the wheel from response at the front treads. And the damping came up short, with a bouncy ride par for the course.

Still sitting on a ladder-type frame, the new G's suspension was developed by Mercedes-Benz and Mercedes-AMG. And finally, it has a decent double-wishbone independent front-end, with a rigid axle at the rear and coil springs all around. Plus, a strut tower brace, Merc-AMG calls it a 'suspension bridge', now connects the front strut towers, increasing torsional rigidity.

Ride comfort, especially in the most compliant 'Ride Control' suspension setting and riding on the big 22s, is massively better. It's no limo. You'll still feel jittering over higher frequency imperfections. But it's way, way ahead of the first-gen version.

The steering system changes from a recirculating ball to rack and pinion, and is now variable ratio with electro-mechanical rather than purely hydraulic assistance. And it's also much improved. We're not talking about a Lotus Elise-style connection with the road, but the steering is clearly more predictable and responsive.

One thing that hasn't changed is an ocean liner-worthy, 13.6m turning circle. You'll need to plan ahead for U-turns and reverse parks, but enough parking cameras (including surround view) to please Cecil B DeMille are on hand to help.

It's like a whole new world with a familiar cover wrapped around a markedly improved package. But (there must be a but) visibility is still compromised by thick window and door pillars, and despite the new dash layout ergonomic efficiency is patchy, with some switches and knobs located in relatively awkward positions.

As mentioned earlier the G 63 features three 100 per cent diff locks and low-range off-road gear reduction. But forget breakover angles and wading depths. This 4x4 seeing off-road action is as likely as an Abbott 2.0 prime ministership.

Suffice it to say, this car wears the 'Schöckl' badge at the base of its B-pillar. And in case you were wondering, Schöckl is a 1445m mountain in Graz, the Austrian city where the G-Class is built (and big Arnie Schwarzenegger was born!).

In the second-gen G-Class's development, prototypes covered roughly 2000km over a five kay trail including gradients of up to 60 per cent and lateral inclines up to 40 per cent. So, despite its irrelevance, the off-highway box is ticked.

Ah, but what about living daily with a manual? As a car enthusiast most of the cars I’ve owned have been manuals and I’ve rarely cursed them because I love to drive.

But there were times when they were a pain, such as in traffic, or in traffic on steep streets and in traffic in shopping centres. Did I mention in traffic, also?

But on the nice roads with bends and dips, hills and sweeping corners, hairpins and twisty parts in places without traffic, then all is forgiven. 

And so it goes with the manual version of the Supra. 

Making life easier in the Supra GT is a clutch pedal without much travel so you don’t feel as though you’re at the gym doing a one-sided leg press.

I found the shifts themselves, while short, to be less than smooth. At first, I thought that the clunky changes might have been because the gearbox hadn’t been run in yet, but the odometer was saying 7500km, so this could just be the nature of the gearbox and after a few days I became used to it.

The rev-matching feature of this gearbox is a nice touch, especially on those sporty drives when you change into a gear and you’re thrown straight back into the power band again.

Superb balance, great steering with a nose which points exactly where you want it to and that magnificently smooth turbo-petrol in-line six posting all its meaty grunt to the rear wheels just behind your shoulders makes for a sports car that’s fun, talented and quick.

Good brakes (348mm ventilated rotors with four piston calipers at the front and 330mm discs with single piston calipers at the rear) and grippy Michelin Pilot Supersport tyres (255/40 fr - 275/40 rr) complete a great package. 

A ride that’s still comfortable over bad Sydney roads and surprisingly good visibility made the Supra easy to live with in the city, from parking to school drop offs.

Yes, used it each day for the school run with my older child and the grocery shopping. 

The GR Supra GT has not been crash tested by ANCAP, but its BMW Z4 twin scored a maximum five stars when it was tested by the European equivalent Euro NCAP.

Still, the Supra has seven airbags, there’s AEB with pedestrian and cyclist detection, lane keeping assistance and blind spot warning, plus front and rear parking sensors. There are seven airbags on board.

There’s no spare wheel, but there is a tyre inflation kit which should get you out of trouble.

Mercedes-Benz (and by extension Mercedes-AMG) offers a three-year/unlimited km warranty with 24 hour 'Road Care' emergency roadside assistance provide for three years.

Servicing is recommended every 12 months/20,000km and a capped price servicing plan is available at Silver and Platinum levels for up to five years/100,000km.

Toyota covers the GR Supra GT with its five-year, unlimited kilometre warranty. Servicing is required every 12 months or 15,000km and is capped at $415 per service.

The warranty is the industry standard in terms of time and kilometre length, and the capped service prices are very reasonable - a lot more affordable than a car with a prestige badge on the bonnet, too.