Mercedes-Benz G580 vs Cadillac Lyriq

What's the difference?

As per the 1979 original, the current G-Class is produced by Magna Steyr in Arnie’s home town of Graz in Austria. And many fundamental things haven’t changed since then. But clearly this EV monster’s exotic electric powertrain is a huge departure.

It retains impressive off-road ability and straight-line speed. But will it hit the mark with top-end luxury 4WDers? Short story, this thing is wild, and it will be irresistible for a likely narrow band of tech-focused ‘must have the latest and greatest’ buyers. Nothing like impressing friends and family with a tank turn.

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

It's got a couple of quirks, but the Cadillac Lyriq is a pretty convincing, and definitely American, take on a premium electric vehicle in Australia. The only issue, I think, is that, while the brand is obviously iconic in the USA, it's not that well known in Australia, and we are a market now awash with pretty good, and often much cheaper, EVs from China. It's a hyper-competitive market. Only time will tell if Cadillac can convince Australians that its badge belongs among the European premium marques.

Okay, so Mercedes-Benz says, with a straight face, that “with the aim of optimising the vehicle’s aerodynamics” classic G-Class elements have been revised, including the reprofiled bonnet, ‘air curtain’ vents in the flares over the rear wheel arches, A-pillar cladding and the small spoiler on the edge of the roof.

At the same time, the 20-inch wheels are also claimed to be "aerodynamically optimised” and underneath, a 26mm underbody casing made from a mix of materials, including carbon-fibre (attached to the ladder frame with more than 50 steel screws), protects the battery from dust, dirt and rocks.

In ticking off the Edition One, car-spotters should look for black rims with blue brake callipers behind them, blue inserts in the exterior protective strips as well as black door handles and a new rectangular design box on the rear door for storing items such as charging cables, tools or snow chains. If you want a spare wheel, choose the standard model.

An optional black-panel radiator grille ($3800) features tinted lighting units as well as an animated LED light band and chrome surround. The light band can be activated as a running light or an animation when locking and unlocking the vehicle.

And it’s worth noting Mercedes-Benz and the car’s contracted manufacturer, Magna Steyr, have invested much time and many Euros in retaining the car’s classic handle and door lock design. G-Wagen owners will recognise its sound from several kilometres away.

Inside the G580 it’s clear this is one area where the G-Class has progressed enormously over the decades. It’s still quite upright in terms of the dash design, but you’re confronted by twin 12.3-inch screens, supporting the Mercedes-Benz user interface. 

All very high-tech, but that’s balanced by an old-school grab-handle for the front passenger to latch onto during off-road work. 

The signature turbine-style air vents are located within squared-off panels, and in the limited Edition One you have a blue fleck running through carbon-fibre inserts on the centre console, door cards and that front grab handle. In the standard car it’s a (very attractive) walnut open-pore wood rather than carbon.

A luxurious interior for sure.

The Cadillac looks… well, it looks American, right? A kind of difficult-to-describe Americanness that’s somewhere between an SUV and state car.

That’s not an insult, by the way. I personally think the Lyriq looks kind of pretty, with its bold elements countered by the surprisingly gentle touch applied in places, like its razor-thin daytime running lights (DRLs).

I’ve got to say, it doesn’t look much like any of the other new SUVs arriving, or a knock-off German brand. It’s got its own persona.

The cabin of the Lyriq is predictably plush, with comfy massaging seats, soft-touch materials and plenty of tech, but it is a little shiny and busy in places for my tastes. Minimalist this is not.

But I do like the fact that – when I’ve got Apple CarPlay hooked up – I can just leave the screen be. My driving stuff is accessed by the wheel, and everything else I want is accessible through physical buttons.

There are some strange elements, though. The grab handle on the driver’s side, which isn’t replicated on the passenger side, is odd, and likely a byproduct of the factory moving the steering wheel. Some of the central storage bins are too small to be really useful, and I hate gloveboxes that can only be opened through the screen.

For the record, the G63 is just over 4.6m long and a little more than 1.9m wide with a 2890mm wheelbase. So, not huge, but its close to 2.0m height is hard to ignore. 

In the front there’s lots of breathing space, and in terms of storage you have generous bins in the doors with plenty of room for big bottles. Then there’s a centre armrest, which doubles as the top of a deep storage box housing a USB-C port inside. 

A sliding roller cover in the centre console reveals two cupholders, another two USB-C sockets, a 12-volt outlet and a wireless charging pad. Add in a big glove box and you’ve got plenty of options in terms of storage, power and connectivity. 

In the back, sitting behind the driver’s seat set for my 183cm position I’ve got tons of foot and legroom and, no surprise, lots of headroom.

There’s a fair bit of sculpting in the rear seat, which is as nice as it is unusual (makers often avoid bolsters on the rear seat as it makes the backrest harder to fold flat). And in terms of three-abreast accommodation, a smaller adult will be okay in the centre spot for shorter journeys. Three up to mid-teenage kids will be swimming in it.

Then, for practicality you again have generous bins in the doors. And if you need even more capacity, fold down the centre armrest which houses two different size cupholders. 

In the rear of the centre console you’ve got two USB-Cs, a 12-volt power outlet, individual climate control and directional vents.

There are map rockets on the front seatbacks and more air vents in the B-pillar. So, when it comes to comfort, powering up devices and storing ‘things’ you’re well taken care of.

The side-opening tailgate door opens from right to left, which isn’t ideal when parallel parked on the left hand side of the road, but boot volume is over 600 litres (VDA) with all seats upright, expanding to nearly 2000 litres with the 60/40 split-folding rear seat lowered.

There are multiple tie-down hooks, a netted pocket, two lights, a 12-volt outlet as well as a ‘ski-port’ door and sliding cargo cover to enhance practicality and security.

As mentioned earlier, the full-size spare in the standard model, but the Design Box replaces it on the Edition One, although Mercedes-Benz says it’s aiming to make a spare available as an option later in the year.

It’s a big boat, the Lyriq, stretching more than five metres long and almost two metres wide. That’s not much shorter than, and in fact slightly wider than, something like a Nissan Patrol, just to put it into perspective. Though of course it’s nowhere near as high as a proper 4WD.

Predictably, though, its dimensions mean plenty of room in the boot, which opens to reveal a very useable 793 litres of luggage space. Drop the seats, and that number grows to a massive 1722 litres. 

But the Lyriq does without any spare wheel of any kind. A tyre repair kit is your only option.

Now, the backseat. And I know this is likely only of interest to parents of newborn babies, but that’s me, so I noticed. These are some of the best ISOFIX attachment points I ever used. Usually you’re fumbling around between the seat cushions trying to line up the latch points, but the Lyriq's solution — while perhaps not the most visually alluring – puts the brackets beneath plastic lift-up flaps, and they're so damn easy to use. 

But there are some quirks in the backseat, too. Those same ISOFIX attachment points, which are so great for baby seats, are less great for the adults actually sitting in the back. You can feel the hard plastic covers, and what feels like the bracing bar running across the backseat, beneath the cushions. It's not diabolical, and if you shift your rear-end forward slightly you can't feel it at all, but it's a strange quirk all the same.

Elsewhere in the backseat, there is plenty of room for backseat riders, and you can control your own temps, too.

You can have your Cadillac Lyriq in two flavours — the Luxury, yours for $122,000 plus on-road costs. Or the Sport, which is two grand more, listing at $124,000.

Perspective time. The new Polestar 3 starts at around $118k, but climbs to more than $130k for the dual-motor options. The similarly sized BMW iX starts at more than $140k, and the Mercedes-Benz EQE is north of $135k. So if you consider the Cadillac a ready-made premium brand, then its looking like a relatively sharpish one. 

Cadillac says the changes between the trims largely focus on the “aesthetic signature” rather than any major equipment differences. The Luxury gets chrome highlights, for example, while the Sport gets a darkened design theme, including the wheels, body highlights and windows.

Both trims are otherwise identically equipped, which means 21-inch alloy wheels, full LED lighting, an electric sunroof, an auto-opening boot and a touch-to-open charging port.

Inside, there’s a 33-inch digital dash, with Apple CarPlay and Android Auto, wireless device charging, a thumping 19-speaker AKG stereo and USB connection points galore.

The leather-wrapped front seats have heating, ventilation and a massage function, there’s heating and cooling for the window seats in the back, tri-zone climate control and there’s 126-colour ambient interior lighting.

The G580 is powered by four permanently excited synchronous motors, each delivering around a CLA200’s worth of power and torque to each wheel for overall outputs in excess of 432kW/1164Nm.

Each motor has its own two-stage transmission and power electronics for almost infinite fine-tuning of the direction and amount of drive sent to individual wheels. Merc calls it ‘individual-wheel drive’.

All Aussie Lyriqs are dual-motor affairs, with an electric motor at each axle producing a total 388kW and 610Nm, which in a car this big, which weighs just under 2.7 tonnes, is more than enough to get the Caddy up and moving, but not enough to make it feel like a supercar. The two motors mean AWD, of course.

Housed in a torsion-resistant casing and embedded low down in its ladder-frame chassis, the G580’s 116kWh two-tier, liquid-cooled lithium-ion battery pack delivers a WLTP-rated range of 473km, or 567km on the more lenient NEDC scale.

‘Eco Assistant’ and ‘Range Monitoring’ functions provide continuous information on battery status, energy consumption and estimated range.

Maximum system capacity is 400 volts which enables 200kW DC charging, meaning a 10 to 80 per cent fill in as little as 32 minutes. Maximum AC charging capacity is 11kW.

Claimed energy use is 23.1kWh/100km, and we saw an average of 28.6kWh across urban and highway running on the launch drive program.

Not exactly a ‘green’ EV choice, then, but it’s worth noting a one-year Chargefox subscription is included to off-set the car’s energy appetite.

The Lyriq is equipped with a 102kWh lithium-ion NCMA battery, which delivers an ok 530km on the combined cycle. I say 'ok', because the BMW iX offers 600km-plus, while the dual-motor Polestar 3 is more like 630km claimed. Energy consumption is a claimed 22.5kWh per 100km on the combined cycle. 

When it comes to plugging in, the Lyriq is set up for 190kW DC fast charging, with the brand promising 128km of range in 10 minutes, or 10 to 80 per cent in just under 30 minutes. At home, a 7kW wall ox will deliver more like 43km an hour.

So, with 432kW and around 1160Nm, even though the G580 weighs in at around three tonnes, you’re talking 0-100 km/h in 4.7 seconds. And this car gets up and goes… like a beast.

What you don’t get is that traditional Merc-AMG G63 V8 rumble, because, of course, no engine. 

But you do get what Mercedes calls ‘G-Roar’, essentially a sound bar at the front of the car also using the audio system inside to give it what is not exactly an engine noise but some sense of the car progressing. And you can turn it off for completely silent running.

‘Electric Dynamic Select’ changes the parameters of the motors, transmission, suspension, ESP and steering as required. On-road that means ‘Comfort’, ‘Sport’ and ‘Individual’ modes, with off-road comprising ‘Trail’ and ‘Rock’. In the Comfort setting drive flows primarily to one axle for optimum energy efficiency.

Suspension is by double wishbones at the front and a De Dion-style live (rigid) axle at the rear. You’ve got the same adaptive-type set-up as per other G-Class models, so ‘Comfort’ and ‘Sport’ modes and of the many traditional G-Class traits this car exhibits, ride quality is one of them.

Even in Comfort you’ll find even little bumps and thumps making their way up into the seat of the pants and the cabin. It is after all a body-on-frame, ladder-chassis type vehicle and that’s not unusual.  

In terms of steering, it’s accurate and road feel is good. You’ve got 275-wide Falken Azenis FK520 tyres that are more on- than off-road focused. The car feels stable and nicely planted on the road.

The physical brakes are by ventilated discs front and rear, and the big rotors are the same size (353mm) all around. They work nicely and feel like a conventional set-up.

Regenerative braking kicks in as soon as you lift off the accelerator pedal. The powertrain is harvesting energy as the car decelerates and there are four levels you can adjust with the steering wheel paddles up to a quite aggressive level - not quite, but close to a single-pedal set-up.

Off-road, the G580’s ‘G-Steering’ system allows the wheels to turn at different speeds to induce slight ‘drift-like’ oversteer and tighten the turning circle. It works beautifully and the car’s fording depth is 850mm, a full 150mm more than internal-combustion G-Class models.

A three-speed off-road crawl function is adjustable to speeds as low as 2.0km/h, and the car is claimed to remain stable on sideways slopes up to 35 degrees. 

Torque vectoring is used to create ‘virtual diff locks’ and there’s a ‘low-range’ setting. Switch to the ‘Offroad Cockpit’ and data including gradient, lateral inclination, compass readings, tyre pressures and the selected G-Mode appear.

A ‘Transparent Bonnet’ function creates a virtual view of what’s approaching and passing under the front wheels to help the driver pick their way through steep ascents or declines.

For the record, the G580’s approach angle is 32 degrees, departure is 30.7, breakover is 20.3 and ground-clearance is 250mm.

And of course, with the wheels independently powered, the G580’s signature move is what Mercedes-Benz calls a ‘G-Turn’ but the rest of the world calls a tank turn.

If you encounter an obstacle that makes forward progress impossible, the system spins the left- and right-hand wheels in opposite directions so this brute can turn on the spot like an M1 Abrams. You can’t help but crack up laughing when executing this extreme party trick!

In terms of miscellaneous observations around ergonomics and the car in general, it has a 13.6-metre conventional turning circle. So if you’re not using the G Turn function in the car park be ready for a sizeable turning arc.

Also, those aero tweaks here and there seem to have had an effect. Wind noise, especially for such an upright, squared-off design is surprisingly modest. And overall, from a build point of view, this car feels as though it’s been carved from a solid piece of metal. In every aspect it presents as a quality item.

The first thing you notice behind the wheel of the the Lyriq is just how whisper-quiet it is on the road. Cadillac makes a big deal about its 'Active Noise Cancellation' tech that's deployed here – it uses sensors to monitor road vibrations and the like, and then uses the car's stereo to create what it calls an 'anti-noise' signal.

It all sounds pretty high-tech and complicated, but it also works, with the Lyriq a seriously quiet and composed way to get around, with only the artificial EV noise really noticeable in the cabin.

Even travelling past freeway speeds, the Lyriq remains quiet, which does lend the whole experience a sort of premium vibe.

The Cadillac is also one of those cars that thinks solidity means premium, from the solid 'thunk' of the doors shutting to a general heft and weight to the steering, there's nothing feather-light or agile about the Lyriq experience, but it does all feel a little artificial, and like it's trying to be heavy on purpose.

The Lyriq, then, is no out-and-out performance car – it's 2.5-tonne-plus kerb weight and Olympic swimming pool dimensions largely put an end that – but it's more than brisk enough to get up and moving, with its twin-motor powertrain finding grip even in slippery conditions. It's brisk, but not brutal.

The Lyriq hasn't been tested or tuned in Australia, but happily it doesn't have that floaty, wafty suspension style so popular in the USA. This one feels to have at least had an international tune, which removes some of that marshmallow softness and makes you feel connected to the road.

The steering, too, feels direct enough and easy to predict, and the overall impression is one of quiet, calm motoring, which is probably what it says on the tin of any premium vehicle.

The Lyriq hasn’t been crash-tested in Australia, but it did get a five-star equivalent in American testing. There’s autonomous emergency braking (AEB) with pedestrian protection and junction assist, as well as active blind spot monitoring and assist. There’s also a side bicycle alert to stop you opening your door into someone, rear pedestrian alert, adaptive cruise and a total eight airbags, including knee bags for the driver and front passenger.

Interestingly, the Lyriq ditches those annoying safety bings and bongs for a novel, and far less intrusive approach which involves sending gentle vibrations through, well, your backside if the vehicle senses incoming danger.

The G580 is covered by Mercedes-Benz Australia’s five-year/unlimited-km warranty, which remains the standard offering in the premium part of the market and an eight-year/160,000km drive battery warranty.

Service intervals are every 12 months or 20,000km with service plan pricing available over three ($2645), four ($3980) and five ($4670) years. In approximate terms, each workshop visit will cost ‘around’ $900. Not exactly cheap, especially for an EV, but this is no ordinary electric vehicle.

Cadillac has built a pretty convincing ownership package around the Lyriq, which begins with a five-year, unlimited-kilometre warranty, and an eight-year, 160,000km battery warranty. Beyond that, you also get five years of servicing, and five years of roadside assistance, free. 

Then you get a year’s free public charging through the Chargefox network and a free home wall box charger. If you have a wall box, or don’t want one, you can trade the home charging for an extra two years of free public charging.