Mercedes-Benz G580 vs Porsche Taycan

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.

Porsche says its Taycan models have always been performance-focused and this updated version is even faster than the car it replaces, in a straight line and point-to-point. It’s better equipped, more efficient, and yes, more expensive but every millimetre a Porsche in the way this EV sedan and wagon package has been executed.

It’s an impressive car likely to appeal to Porsche newcomers rather than traditionalists, although you may already have other Porsches in the garage. But with the Macan EV landing any minute and the pure-electric 718 Boxster and Cayman just around the corner it's a key part of the changing face of this iconic German brand.

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

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.

Porsche has freshened up the Taycan’s front and rear end, the nose losing the vents dropping down from the headlights as previewed by the original Mission E Concept in 2015.

Matrix LED headlights are standard with high-resolution HD available. But there are no major sheet metal changes to the bulk of the car. And why would you fiddle with it? The drag coefficient is an ultra-slippery 0.22.

Around the back the Porsche logo in the rear light strip has been given a cool three-dimensional treatment al la the 911, Panamera and other current Porsches. And if you have eyes for the Turbo or Turbo S the brand’s glamorous ‘Turbonite’ metallic silver colour is now available.

Inside is a screen-rich environment with a three-dial digital version of the brand’s five-dial instrument cluster customisable through roughly 5000 configurations and there’s a new multimedia software interface for the central screens with additional functions. A passenger display is a $2860 option.

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.

At nearly 5.0m long and 2.0m wide but less than 1.4m tall the Taycan is a low-slung large sedan.

In the front of the Taycan I’ve got plenty of breathing space, lots of headroom and enough shoulder room and you don’t feel cramped relative to the co-pilot.

In terms of storage, there are pockets in the doors with room for bottles, a couple of cup and bottle holders in the centre console as well as a tray under the flying buttress type upper console section.

A lidded box between the seats housing a couple of USB-C outlets and a 12-volt socket is handy and there’s a decent-size glove box on the passenger side. 

Interestingly, an in-car video function enables video streaming on the central display (while the vehicle is stationary) and the passenger display at any time with the vision hidden from the driver by a lenticular-style screen.

In the back, sitting behind the driver’s seat, set for my 183cm position, I have ample legroom and space for my feet. Problem is my head hits the roof solidly, even with the extra room afforded by the panoramic glass insert, which is a no-cost option from the Taycan 4S up.

Standard configuration is two rear seat positions, although a ‘4+1’ set up which adds an occasional centre rear position is optionally available. Trust me, that’s tight. 

On the upside you have adjustable ventilation for the rear seat passengers (climate control zones on the Turbo grades) with a small oddments shelf below them, slots in the doors for bottles and two more cup or bottle holders in the fold-down centre armrest.

No map pockets on the front seat backs, so while there’s some room for storage it’s not exactly over supplied in that department, or for breathing space in general.

Boot space is relatively modest at 366 litres in the sedan but the 60/40 split-folding rear seat liberates more space if required. The Cross Turismo wagon offers 405 litres and a much larger load aperture for greater flexibility. An 84L frunk sits in the nose of all Taycans.  

Interesting to note Taycans in other markets boast an extra 41L of boot space. It doesn’t feature here because Porsche Australia has made the high-end Bose sound system standard and its sub-woofer eats into available capacity. 

A power boot lid or tailgate and auto self-levelling to maintain the car’s ride height under load is standard but there’s no spare tyre of any description. A repair/inflator kit is your only option, which is less than ideal.

Cost-of-entry to the Taycan club stretches from close to $174,500, before on-road costs, for the entry-grade, single-motor RWD model to just under $373,600 for the flagship dual-motor AWD Turbo S. That’s an increase of between 2.7 and 6.6 per cent, varying by model.

MSRP - correct at time of publication

The heavy-hitting Taycan Turbo GT is scheduled to arrive in the third quarter of this year at $416K, and we’ll no doubt see a sporty GTS variant within the next 12-to-18 months.

That price spread for the new Taycan pitches the Porsche against the likes of Audi’s closely related e-tron GT and RS GT, BMW’s three-tier i5 line-up and the Mercedes-Benz EQE sedan.

Highlight spec additions include ambient lighting, soft-close doors and an ‘Intelligent Range Manager’ which uses the nav and onboard systems to optimise energy use.

The ventilation system now features a heat pump which compresses outside air to heat the cabin and wireless charging is included across the board.

Then tip in adaptive cruise control, a head-up display, lane change assist, surround camera view (with ‘Active Parking Support’), rear side airbags and digital radio.

The base model picks up adaptive air suspension, alloy door sill protectors and a bigger, lighter battery.

That’s on top of a laundry list of non-safety or performance related inclusions like auto matrix LED headlights, dual-zone climate control, 14-way electrically adjustable heated front seats (with memory), partial leather trim, privacy glass, 10.9-inch central multimedia display, configurable digital instrument panel, 14-speaker/710W Bose audio (with digital radio), Apple/Android connectivity, an auto tailgate and more. 

While, depending on model, higher grades collect extra standard gear ranging from bigger rims and full leather interior to a panoramic glass roof and ventilated seats. 

Not bad, even in this elevated part of the market.

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’.

The entry-level single-motor RWD Taycan features a new electric motor that’s 10kg lighter and seven per cent more powerful but more notably produces 22 per cent more torque than the unit it replaces.

Both it and the additional motor fitted to the front axle of AWD models are permanent magnet synchronous units with outputs up across the range, the Turbo S producing a stonking 700kW and more than 1100Nm.

That 700kW peak number for the Turbo S comes courtesy of an ‘overboost’ function with Launch Control. And Taycan models equipped with the Sport Chrono package and the Performance Battery Plus have up to an extra 70kW courtesy of a 10sec push-to-pass button.

There’s a two-speed transmission on the rear axle and a single-speed on the front of AWD variants.

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 Taycan runs 800-volt electric architecture which means it can charge at up to 320kW on a DC fast-charger which is 50kW more than its predecessor. In fact, charging at more than 300kW for up to five minutes is possible. 

You’re looking at a 10-80 per cent charge in 18min on a fast charger which is down from 37min. It’s 46min on a more typical 120kW charger.

An 89kWh lithium-ion battery is standard on the entry-grade Taycan. It boasts a nickel, cobalt, manganese cell chemistry which Porsche says delivers high energy content, lower internal resistance and higher charge and discharge currents. And it’s 9.0kg lighter.

All models above it feature the 105kWh ‘Performance Battery Plus’, a roughly $12K option on the base car.

Maximum AC charging capacity is 11kW and you’re staring down the barrel of nine hours for a 0-100 per cent fill of the smaller battery and 11 hours for the performance battery pack.

Official energy consumption on a combined urban, extra-urban cycle varies from 17.1kWh/100km for the single motor Taycan to 17.8kWh for dual-motor variants.

On the launch drive program, covering mainly rural B-roads on Tasmania’s east coast, we cycled through all models on offer and recorded a best figure of 21.5kWh/100km for the single-motor Taycan up to 22.0kWh for the Turbo S. Not bad.

Claimed range is 566km for the entry-grade Taycan, up to 626km for dual-motor models.

Interestingly, on 4WD models the - front electric motor can electronically decouple more frequently to improve efficiency.

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.

Full disclosure. My preference when it comes to Porsche propulsion is pistons in cylinders; ideally six of them, horizontally opposed. 

But if the Taycan is on your shortlist you’re ready to move past internal combustion and there is no doubt this car is properly quick. 

The entry-level RWD model accelerates from 0-100km/h in 4.8sec (0.6 faster than the outgoing model) with the Taycan Turbo S at 2.4sec which is hypercar fast.

Porsche admits to having played around with some dual-clutch transmission-type mimicry along the lines of the Hyundai Ioniq 5 N. But the boffins in Zuffenhausen left that to one side due to concerns over compromise to the car’s point-to-point ability. Porsche seemingly can’t entertain anything that makes a car slower.

It did, however, install a push-to-pass function on dual-motor versions which gives you a 10-second burst of extra performance which is fun.

Suspension is by forged alloy double-wishbone front and rear with some extra links at the back.

Adaptive air suspension is standard across the range, and ‘Active Ride’ is fitted to the upper variants which takes things one step further.

And it does ride very nicely. The launch drive covered second-class, coarse-chip B-road type surfaces and the Taycan smooths the road out beautifully.

Standard wheel diameter is 19-inch for the entry-grade, 20s for the 4S and Turbo, then 21s on the Turbo S. The cars on the launch program all featured 21-inch rims shod with Goodyear Eagle F1 or Michelin Pilot Sport 4 rubber and even on those big wheels the car still rides well.

In terms of the steering… hey, it’s a Porsche. It’s fantastic. Accurate and direct without being too jerky or snappy. It does exactly what you want the car to do. The connection with the front tyres feels like it’s almost direct.

This car may be lighter than its predecessor but all models are over 2.0 tonnes so you’d expect it to be heavy and slow. It’s not. Point and accelerate through corners with supreme confidence. It’s beautifully balanced. What you’d expect from a Porsche performance car.

Physical braking is by big ventilated discs all around with six-piston aluminium monobloc fixed-calipers at the front and four-piston units at the rear. Suffice it to say they wash off speed effectively. 

Believe it or not the Turbo S’s front brake calipers contain no less than 10 pistons, clamping ceramic composite rotors. We gave all Taycan variants a solid workout on the Baskerville Raceway just north of Hobart and stopping power felt as strong and effective at the end of the session as it did at the start.

There’s also improved recuperation capacity for the regenerative braking system, up 30 per cent from 290 to 400kW.

In terms of miscellaneous observations, beware the 11.7m turning circle. What might appear to be a three-point turn situation often turns into a five-pointer.

And entry to cars fitted with Active Ride is made easier (when activated). As soon as a door is opened, the body raises by 55mm. May seem OTT but it makes life with the Taycan that bit better.

Although Porsche and ANCAP do not intersect at this stage the Taycan ticks just about every active (crash avoidance) safety box in the book.

The highlights are AEB (including pedestrian detection), 'Intersection Assist', 'Lane Keeping Assist' and adaptive cruise control (with ‘Swerve & Turn Assist’). There’s also a high-def reversing camera, a surround view set-up, lane-change assist and a head-up display.

If a crash is unavoidable there are 10 airbags onboard (dual front and front side, driver and front passenger knee, rear side and full-length curtains) as well as an active bonnet to minimise injuries in a pedestrian impact and multi-collision brake minimises the chances of subsequent collisions following an initial crash.

There are two top tethers and two ISOFIX anchors for baby capsules and/or child seats across the second row.

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.

Porsche covers the Taycan with a three-year, unlimited km warranty which is off the pace for the premium segment where five years, unlimited km is the norm. The high-voltage drive battery is covered by an eight-year, 160,000km warranty. The paint is covered for three years and a 12-year (unlimited km) anti-corrosion warranty is included.

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.

Thanks to fewer moving parts, servicing intervals for the Taycan are relatively lengthy at two years or 30,000km, whichever comes first. 

With Porsche, final costs are determined at the dealer level (in line with variable service labour rates by state/territory).