Ineos Grenadier vs Mercedes-Benz G63

What's the difference?

The Ineos Grenadier Station Wagon is an impressive four-wheel drive. This five-seat off-roader is stacked with features, is very capable off-road and it's actually not atrocious on-road. But its price will deter a lot of people and those who buy into the Grenadier lifestyle have to be prepared to endure some compromises and discomfort along the way… because this is not for everyone. And that’s kind of the point.

This is a new old-school 4WD – a niche within a niche – and while it’s bursting at the seams with an abundance of quirky features, those quirks may quickly lose their appeal and become annoyances. A lot of people will buy the Grenadier because they like the idea of it, but the reality of living with it day to day – or any old-school 4WD, for that matter – may be uncomfortable for them, similar to all of those people who bought a camper-trailer during COVID only to realise they hated camping.

When all is said and done, the Grenadier is a retro-cool 4WD with solid off-road capability.

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.

In terms of its design, you're either going to love the Grenadier or not. This is a big, tall, chunky four-wheel drive, with plenty of presence about it and if that’s your cup of tea you’re in luck.

This Grenadier is 4855mm long (with a 2922mm wheelbase), 1930mm wide, 2050mm high and a listed kerb weight starting from 2150kg, depending on how many accessories you have onboard.

In Trialmaster guise, this Grenadier has a raised air intake, sidesteps, big steel wheels and all of the sort of stuff that screams, "Hey, look at me. I'm an off-roader!”.

The interior is spare enough to retain the spirit of adventure the Grenadier so wants to conjure but with plenty of comfort and features on offer (more about those aspects in the next section).

But the Recaro seats, the profusion of buttons, knobs and dials, and this 4WD’s abundance of quirky design cues, all more than a bit of a novelty, combine to set this interior apart from the mainstream 4WD market.

It’s a military-style cockpit, but in a good way; this is a snug cabin replete with textured surfaces and durable materials, and again the dash and ceiling are seemingly peppered with controls.

So, in the design stakes, the Grenadier has it all over most rivals, except perhaps the Toyota LandCruiser 76 Series wagon, which also exudes old-school cool.

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.

There is a lot to like about the Grenadier cabin when considered through a lens focused on practicality and comfort.

I’ve revised my opinion on the Grenadier’s all-around practicality since I last tested the Quartermaster Trialmaster and, as a result, have uprated it from 7.0 to 8.0 – but it’s important to note here that our test vehicle is equipped with plenty of extra-cost add-ons which have helped bolster the cabin’s rating.

The interior is set up for the messiness of day-to-day life, with an abundance of hard plastic and other durable surfaces everywhere. Its big chunky rubber mats all cop a bit of a beating, but remember those come at an extra cost ($381, at time of writing).

The seats in the front and back – all Recaro – are comfortable, as you get plenty of room everywhere, and while the control panel is a bit of a confusion of dials and knobs and buttons, if you give yourself a time to get used to it you should be fine.

The Grenadier Station Wagon is a five-seater and with all five seats in use, there is a fair amount of space at the back for all of your gear. I had my vehicle-recovery gear in here, MaxTrax, two air compressors and there's plenty of space available.

The rear cargo space has a durable, hard plastic floor and that cargo area is equipped with movable tie-down points in the walls and fixed tie-down points on each wall and a 12-volt socket.

It's made for real life, it’s ready for dirt and mud and mess, so it's not too bad. For all-round robust practicality, the Grenadier bests its rivals.

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.

Okay, you're laying down a quarter of a million bucks ($247,329 before on-road costs) and it's fair to expect some serious tech and standard equipment to keep you feeling warm and fuzzy after you're finished impressing friends and family with the G 63's howling acceleration.

For a start, there's a bunch of leading-edge safety tech on-board (detailed in the safety section below), and as expected that substantial cost-of-entry brings an extensive list of luxury features.

We've touched on the twin 12.3-inch 'Widescreen Cockpit', and available media includes digital radio and TV tuner, internet connectivity and 3D nav (with dynamic route guidance), as well as smartphone integration with Apple CarPlay and Android Auto.

Audio is a thumping 15-speaker, and 590-watt Burmester surround sound system, and the ambient lighting set-up offers a choice of 64 colours.

Also included are 'Multibeam' LED headlights, 'AMG Ride Control' adaptive damping, a 'Parking Package' with 'Active Parking Assist' and 360 camera, a sliding glass sunroof (with tilt function), the selectable AMG sports exhaust system, keyless entry and start, the AMG Performance steering wheel (trimmed in nappa leather), and 21-inch AMG '5-Twin spoke' alloy wheels.

Then there are the three 100 per cent differential locks (plus an 'off-road information centre'), electronically adjustable front seats (ventilated front and heated front and outer rear), steering column and mirrors (with memory function), three-zone climate control, nappa leather upholstery, a leather-finished dashboard with open-pore ash wood trim, a 'Dinamica' microfibre roof liner, and an AMG-specific IWC design analogue clock. Plus, the 'Dynamic Select' system enables a choice of pre-set driving profiles or individual settings.

The optional 'Exclusive Interior Plus Package' ($10,300) fitted to 'our' car adds deluxe nappa hide on the dashboard, door centre panels and grab handle, as well as a diamond quilted treatment on the seat centres, a black 'Dinamica' roof liner, velour floor mats (with edging in nappa leather), a frameless interior mirror and air vents in 'Silvershadow'.

On top of that the test vehicle was optioned with the 'Night Package' ($5900) detailed in the Design section, and Designo 'diamond white bright' paint ($5900) for a manufacturer's recommended list price (MRLP) of $269,429.

That puts the G 63 in the same price and equipment ballpark as the supercharged V8 Range Rover Autobiography ($268,900), twin-turbo V8 Porsche Cayenne Turbo ($239,400), and its Mercedes-AMG GLS 63 sibling ($221,729), powered by a version of the 5.5-litre twin-turbo V8 used in the first-gen G 63.

An impressive trio of alternatives, but in reality the idiosyncratic G 63 doesn't have any direct competitors, and for those who give in to the pull of its powerful tractor beams value-for-money becomes a uniquely personal concept.

The Ineos Grenadier Station Wagon Trialmaster is available with either a BMW 3.0-litre six-cylinder turbo-petrol engine (producing 210kW at 4750rpm and 450Nm at 1750-4000rpm) or a BMW 3.0-litre six-cylinder turbo-diesel engine – producing 183kW at 3250-4200rpm and 550Nm at 1250rpm-3000rpm.

Our test vehicle has the diesel. This Grenadier has an eight-speed ZF automatic transmission and a dual transfer case (high- and low-range 4WD), as well as a front, centre and rear diff lock – those are Trialmaster-level features.

This is a nicely refined engine-and-auto combination that does, however, take some urging to keep this big blocky beast on the move but, all in all, it offers a decent punch of torque across a wide rev range when needed while 4WDing.

It may not be overly slick or smooth, but the Grenadier’s engine and auto at least put it on a par with the likes of the Toyota LandCruiser 76 Series.

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.

Fuel consumption for the Ineos Grenadier Station Wagon with the diesel engine is listed as 10.5L/100km, and that's on a combined (urban/extra-urban) cycle.

On this test, which included a lot of high- and low-range 4WDing, I recorded 12.2L/100km. 

This vehicle has a 90-litre fuel tank so, going by my on-test fuel consumption figures, from a full tank, you could reasonably expect a driving range of almost 740km.

The diesel Ineos Grenadier Station Wagon has a 17-litre AdBlue tank, which you’ll have to top-up as required.

None of its rivals are particularly impressive in terms of fuel efficiency, so the Grenadier holds it owns here.

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.

There’s a pleasant surprise in store for you if you haven’t been in an Ineos Grenadier Station Wagon before. It's not terrible on road, it’s actually quite nice to drive.

Keep your expectations in check, though. This is after all a tall, blocky four-wheel drive wagon, so there is wind noise around the mirrors and the straight up-and-down windscreen and there is some tyre noise, especially from the Trialmaster’s BFG all-terrain tyres. But overall, it's not too bad.

You have to constantly make minor corrections in the steering to keep this chunky mongrel in line, and it takes some urging to get moving, but otherwise it is quite reasonable on sealed surfaces.

However, this one of those vehicles that is, of course, best exercised off-road. And the news is mostly good.

An impressive over-arching aspect about this vehicle is the fact you can drive it straight out of the dealership into some challenging 4WD-only terrain and you shouldn't have a problem as long as you drive it with consideration. This Grenadier is pretty much fully kitted out for hardcore four-wheel driving – or as close as you can get to it in a standard (albeit very well-equipped) off-roader.

The six-cylinder, as mentioned, works well with the eight-speed automatic transmission. It’s a punchy combination, but not over the top.

It has impressive low-range gearing, plenty of torque on tap, quietly effective driver-assist tech (including hill descent control), and, in this Grenadier, you have front, centre and rear diff locks, so all of those factors help to make this a willing and able four-wheel drive.

As well, off-road angles (36.2-degree approach, 36.1 departure and 28.2 ramp-over) all check out for a vehicle of this size. Ground clearance is a listed 264mm, wading depth is 800mm and if you happen to touch earth with the undercarriage of this vehicle it has solid underbody protection for such occasions. There are, however, some trade-offs worth noting.

The tweaked steering still lacks the pinpoint precision that is handy, especially when you're four-wheel driving. It has a very floaty ride on road because it is a big vehicle and it's more at home in a four-wheel drive scenario.

You have to drive this vehicle with plenty of mechanical sympathy, it has to be used with reasonable use in mind. This is after all $150,000 worth of rolling machinery and if you want to keep it as new, then you'd better drive it with care.

And, while that underbody is well protected, it needs to be because it’s quite vulnerable to tree roots, rocks, rocky steps and any other kind of natural hazard you may encounter in the bush.

Also, like any decent old-school-style four-wheel drive that's worth its salt, engaging the diff locks requires some patience, because it’s a process that has to be done in a strict sequence. First, engage the centre diff, then the rear and then the front. The diff lock buttons are on the ceiling control panel so give yourself time to get your head around it and you’ll be fine. This vehicle demands your attention because it is a real driver-focused experience, which is great.

If you plan to use your Grenadier station wagon as a tow vehicle, it’s handy to know its capacities are 750kg (unbraked trailer) and 3500kg (braked).

The Grenadier matches or betters its rivals in terms of on- and off-road driving.

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.

The second-gen G 63 hasn't been assessed by ANCAP or Euro NCAP but its new electronic architecture brings the car up to speed on active safety tech, now incorporating 'Distronic' cruise control with 'Active Distance Assist', 'Active Brake Assist', AEB (forward and reverse), 'Active Lane Keeping Assist', 'Blind Spot Assist', 'Adaptive High-Beam Assist', tyre pressure monitoring, and 'Traffic Sign Assist'. Plus, the 'Pre-Safe' system prepares the vehicle and occupants in the face of an inevitable collision.

And once that impact has occurred, you're protected by nine airbags, including rear seat airbags, full-length curtains and a driver's knee bag.

There are three top tether points for child restraints/seats across the back seat, with ISOFIX anchors in the two outer positions.

The Ineos Grenadier Trialmaster Station Wagon is covered by a five-year/unlimited km warranty.

No capped price servicing is available and service intervals are scheduled for every 12 months or 15,000km, whichever occurs soonest, and total cost for the five years is $5992 for the diesel and $5832 for the petrol.

At time of writing, there are 16 approved INEOS Automotive dealerships in Australia.

If you buy a big 4WD you should expect big 4WD ownership costs, right? The Grenadier remains competitive with its rivals in this space.

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.