2018 BMW M5 vs 2023 Audi E-Tron Gt

What's the difference?

The term bigger is better doesn't often apply to performance cars, but it fits the M5 Competition perfectly. Big inside, but small outside when it matters, BMW's new performance flagship might be expensive, but there's no shortage of bang for those bucks.

The e-tron rightfully takes its spot at the top of Audi’s range. It’s a harbinger of all things electric in the performance realm for years to come and to look at, touch, and feel, it’s Audi all the way through.

The spirit of the Taycan also lives here, though, so while it’s a little less imposing to look at, it’s almost every bit as impressive to drive, making it compelling if you’re looking for an early slice of what performance electric motoring can look like.

Our pick of the range? The base is really all the GT car you could ever need, but at the end of the day most buyers will opt for the RS anyway...

Let’s start with the new stuff, shall we? The BMW M5 Competition gets a new colour ('Frozen Dark Silver'), as well as new 20-inch (and lightweight) alloy wheel designs, and the grille, aero-designed wing mirrors and boot lip are finished in high-gloss black. The quad exhaust pipes are a black, too, as is the rear diffuser. Elsewhere outside, though, it’s the more muscular 5 Series of old.

Parked next to the much smaller M2, you quickly realise just how much bulk the M5 is carrying. It stretches 4966mm in length and 1903mm in width, and it looks every centimetre of those dimensions in the metal.

Climb inside, and you’re greeted with the familiar BMW interior design, with a huge centre screen, digital driver’s binnacle and a spaceship-level number of buttons surrounding the shift lever. The M5 Competition also arrives with full leather (seats and dash) trim, with carbon-effect dash inserts and aluminium pedal and foot rest trims.

Is it the most adventurous design treatment, inside or out, that we’ve ever seen? Well, no. But it looks polished and premium outside, and feels plenty comfortable inside.

I was an e-tron doubter. When I first saw pictures of Audi’s flagship electric offering I thought it took the brand’s oval formula to the extreme, with the silhouette of a bar of soap on wheels.

Up close and I couldn’t have been more wrong. The e-tron is spectacular to gaze upon, with awesome details which really cement its place at the top of the brand’s performance range.

The best angle is by far the rear three-quarter, the imposing stance of this car, the way its glossy rear diffuser lifts up to reveal the ultra-wide track of its rear wheels, and the enormous ‘blisters’ which curve over the rear arches are elements poorly communicated in pictures.

When seen up close, though, it leaves no doubt of this car’s aggressive intent and alludes to its on-road prowess.

The rear light fittings, which look flat and like any other Audi in the pictures, are all alluring and three-dimensional in reality.

The side profile has elements of RS7 in there, touches of Taycan, but a signature overall Audi shape, with the most interesting element being the wheel designs.

Like many new EV wheel designs, they’re optimised for aerodynamics, and consist of alloy elements with plastic hubcap-like pieces integrated into them.

The ones on the RS in particular have an interesting effect of looking entirely different depending on how close you get.

The black contrast elements serve to shrink the car from a distance, making it look less intimidating than its Taycan relation.

The front is the least complex part of the car, but the way Audi’s designers have managed to blend the blanked-out grille but maintain the contrasting face shape it shares with the combustion range is admirable.

It doesn’t scream ‘electric’, but subtly blends the best parts of both worlds. I like it.

Inside is equally impressive. I like it almost as much as the rear haunches, if only for the fact that it feels like an Audi, and not just a re-skinned Porsche, which is what I was expecting.

Instead, the flat, minimalist, and almost retro appeal of the Taycan is swapped for a dash design more deeply three dimensional in the e-tron GT, complete with signature Audi elements like a rhomboidal theme, angular detailing, and flush-set screens.

All the materials and buttons feel properly Audi, as well as the refreshingly simple three-spoke wheel which the GT shares with the e-tron SUV.

Personally I wasn’t sure about the Alcantara finishes on the wheel or centre console of our RS test-car. They look nice now but won’t in a few years with enthusiastic use. I’ve seen enough older performance cars to know the Nappa leather is the better choice.

As far as performance cars go, the M5 Competition is a rolling Swiss Army Knife. For one, it’s bloody massive, which pays considerable dividends for passengers. 

Up-front, the seats are far enough apart to ensure you’ll be rubbing shoulders with exactly nobody. The centre console Is super wide (all the better for fitting all those buttons), allowing for a sizeable centre storage bin, joined by two cupholders and a second storage bin in front of the shifter which is also home to your USB, power and 'aux-in' connections.

In the back, there’s business-class levels of leg and headroom, and you can even fit another whole adult in the centre seat if you’re so inclined. The pull-down seat divider is home to two extra cupholders, sitting in front of a thick armrest, and the rear air vents get their own temperature controls. There’s an ISOFIX attachment point in each window seat, too. Pop the capacious boot and you’ll find 530 litres of storage space.

As with most performance cars, there are some wins and losses here. The e-tron GT gets off to a rolling start though with its front seat (let’s be honest, this is where the action is meant to happen anyway), offering great adjustability, a sporty low position, and plenty of headroom and arm space for the front two occupants.

On the downside, storage space isn’t as stellar as I’ve come to expect on cars with new EV platforms. Most of this is down to the GT’s intent as a sports machine first, with low-set seats meaning less room to carve out for batteries under the floor, and hence less storage cutaways down the centre.

The two cupholders are nice and big, and the console armrest box is okay, complete with a little side-mounted wireless charger, but the door pockets are embarrassingly small with no bottle cutouts, and there’s precious little storage elsewhere.

The low seat and curvy roof means you have to duck down low to get in, and oddly the big fixed sunroof doesn’t have a retractable shade, so this car is going to get hot being left out in the Aussie sun.

The screens, as usual with Audi products, are a highlight, offering super fast, sharp hardware, and attractive and functional software, with the only real downside being some of the touch areas when phone mirroring can be quite small with such a high-resolution screen.

The back seat lays claim to this Audi’s big EV party trick, the fact that there are sizeable cutouts in the under-floor battery pack so adults can enjoy usable legroom.

It works. I have airspace for my knees behind my own seating position, and headroom is surprisingly good, too.

Technically the e-tron GT is a five-seater, but the centre rear position is all but useless, at least for adults, as it is very narrow.

There’s nowhere to put your feet thanks to a raised centre floor to facilitate additional battery space, almost like a transmission tunnel in a combustion vehicle.

Rare amenities for rear passengers include two USB-C ports and a third climate zone with a control panel, although, unlike some EV rivals, there’s no full-size household power outlet.

Boot space comes in at 350 litres which isn’t huge considering the e-tron GT’s rather large footprint.

As a result it could only hold two of our three CarsGuide test luggage cases. There’s no under-floor storage here, although you do get an elastic net.

The GT also scores a surprisingly large under-bonnet space, perhaps a good spot for keeping your charging cables.

There are two forms of the Audi e-tron GT, the regular GT version with prices starting from $180,200, or the full-fat RS, which takes a healthy jump to $248,200 along with a corresponding rise in performance and standard equipment.

Audi promises the e-tron GT is better value than its Porsche Taycan rival like-for-like, starting with all-wheel drive only as opposed to the Taycan’s rear-drive base-spec.

For those worried about EV value, consider the e-tron GT is both faster and much more affordable than the R8 was before it was discontinued in Australia last year, with the latter starting from a whopping $316,377, before on-road costs, before it met its end.

Taking its spot at the helm of Audi’s range, the e-tron GT certainly doesn’t want for standard gear, with equipment on the base version including 20-inch alloy wheels, adaptive air suspension, a fixed glass roof, LED matrix headlights, a 12.8-inch digital instrument cluster and 10-inch multimedia touchscreen with wireless Apple CarPlay and Android Auto, a 710-watt audio system, and of course all the expected safety gear.

The standard GT variant is slightly less powerful than the RS with its dual-motor set-up producing ‘just’ 350kW/630Nm, but maintains the rather unusual two-speed transmission and, of course, the all-wheel drive system.

Let-downs for this model include the surprisingly average feeling synthetic leather seat trim, and the plastic filler panels adorning the dash which the RS replaces with much more attractive carbon-look inserts. These are no deal-breaker for sure, but the seat trim in particular feels a bit rude on a vehicle which costs over $180,000.

The RS e-tron GT meanwhile ups the power to a whopping 440kW/830Nm, increases the standard wheel size to 21-inch, adds actual Nappa leather seat trim with an additional ventilation function, as well as an all-wheel steering system, rear differential lock, upgraded laser headlights, and tungsten carbide brakes as standard.

The car we primarily tested for this review had further options, taking the price to nearly $280,000, including a more hardcore carbon ceramic brake package, coming in at a staggering $12,500.

The e-tron GT also offers an extremely rare option in the world of EVs, a 22kW AC charging inverter ($6900), which makes it the fastest charging car in Australia on this standard. Good luck finding a public outlet which will actually go that fast.

Thanks to its heavy-duty 800-volt battery hardware, it is also one of the fastest charging electric cars in Australia, full stop. More on this in the charging part of this review.

Yes, our all-electric future feels inevitable. And yes, there’s much fun and performance to be had from battery-powered EVs. But you can’t help but hope that future is a Star Wars style far, far away when you get acquainted with the BMW M5 Competition’s monstrous twin-turbo V8.

It’s good for a wondrous 460kW (up 19kW on the regular M5) and 750Nm. Both of which are big numbers, which are fed to all four wheels via an eight-speed 'M Steptronic' automatic. Happily, you can, at the push of some buttons, make the M5 a rear-driver again. It’s slower, but damn if it ain’t much more fun.

As a result, the performance numbers need to be seen (or better yet; felt) to be believed. The near-two-tonne M5 Competition will blaze from 0-100km/h in 3.3secs, 0-200km/h in 10.8secs, and push on to a limited top speed of 250km/h (or 305km/h, provided you do some BMW driver training).

The e-tron GT is stupidly powerful. The 350kW/630Nm available in the base GT allow a 0-100km/h sprint time of just 4.1 seconds, while the even higher 440kW/830Nm available in the RS reduces that to a mind-melting 3.3 seconds. Not bad for a car which weighs nearly two and a half tonnes.

Like the Taycan, the e-tron GT sports a two-speed transmission, with the low gear primarily used in sport mode as a take-off ratio, with the second made for highway cruising or when the car is set to 'Eco' mode.

Two electric motors allow for fully adjustable all-wheel drive to enhance handling while the RS goes a step further with its subtle all-wheel steer system and locking rear differential which enhances its agility at both low- and high-speeds even further.

Well, BMW tells us you’ll return 10.7-10.8 litres per hundred kilometres on the combined cycle. But we would suggest that’s unlikely, unless you have Miss Daisy lounging in the back seat. Drive it like you definitely will drive it, and you can expect to pay for that privilege at the pump. 

Emissions are a claimed 243-246g/km of CO2, and the M5 Competition’s 68-litre tank will demand a premium unleaded petrol.

There is just one massive battery in the e-tron range, a huge 83.7kWh (net) lithium-ion unit. This grants the GT a driving range of 540km to the more lenient NEDC (rather than WLTP) standard, while the RS scores 504km of range.

The battery is an 800-volt unit, with an integrated water-cooled design which helps the e-tron GT join the Taycan, Kia EV6, and Hyundai Ioniq 5 as one of the fastest-charging EVs on the market.

On a compatible DC charger which can hit this car’s 270kW peak, the e-tron GT can charge from 5-80 per cent in just 22 and a half minutes.

To help this process along, setting the destination to a charger in the car’s built-in navigation will help to pre-condition the battery to ideal charging temperatures.

Other impressive charging specs include the option to install a 22kW AC inverter, bringing the ‘slow charging’ time down to just four hours if you can find a compatible unit.

Otherwise the standard rate is an acceptable 11kW. The e-tron GT is also one of the only EVs on the market with AC charging outlets on either side, ensuring you won’t have to stretch to reach the nearest charging port.

The downside of all of this is the fact the e-tron GT, like its SUV sibling and Porsche Taycan relation, has a comparatively high energy consumption.

The official numbers are 19.2kWh/100km for the standard GT, or 20.2kWh/100km for the RS. These numbers are already high, but we saw significantly higher again on our test route.

While you probably won’t be driving the car as thoroughly during the every-day commute, I have experienced similarly high numbers in the mid-20kWh/100km range in the e-tron SUV during standard weekly testing, so expect similar. Good thing it charges quickly.

Things this large simply shouldn’t be this potent. Like John Goodman suddenly toppling Usain Bolt at the Olympics, the BMW M5 Competition is bulk-defyingly good at the fast stuff.

The secret is its ability to hide those sprawling dimensions on a race circuit or twisting road. BMW’s engineers have poured plenty of work into stiffening the chassis of the M5 Competition, from new anti-roll mounts to additional under-bonnet bracing, to make the brand’s biggest performance sedan feel more lithe and responsive when pushed. 

And while its size never vanishes completely - and you find yourself praying you don’t encounter oncoming traffic on skinnier roads - engaging the Competition’s sportiest settings unlocks a Copperfield-level vanishing act.

The engine helps too, of course, pushing the M5 along with staggering ease, even when you’re pottering at suburban speeds. But really flatten your foot and the big V8 will force you to reassess your knowledge of physics. It’s really very fast, the Competition, the power flowing uninterrupted to the tyres, the engine still very willing to deliver more oomph long after your courage has jumped ship. 

The steering, direct though it is, lacks some natural feel, but you are always left with the impression that the Competition is going to go where you point it.

More fun stuff? Well, you can switch the traction control to a half-off setting, allowing for some smoking, drifting heroics before it drags you back into line. BMW calls it M mode, and it’s designed to make a hero of even the most ham-fisted of pilots, myself included. The braver still can deactivate traction control all together which, combined with rear-wheel-drive mode, turns the M5 Competition into the biggest and possibly most expensive drift car of all time .

Away from the track, though, the Competition version of the M5 is almost as good as transforming into a comfortable everyday commuter as its less hairy siblings. The adaptive suspension can be softened, and the steering lightened, to make toppling traffic a doddle. 

The keen-eyed among you might well have noticed we’re yet to touch on any major downsides of the drive experience. And you'd be correct. 

You’re probably wondering if you can even see out of the e-tron GT given its low-set shape and seemingly small windows, but the answer is yes. Mostly.

There’s decent visibility out the front with surprisingly good mirror coverage to see out the rear, although the rear window is a bit hopeless, offering just a letterbox aspect of what’s behind you.

The seating position is excellent, though, allowing you to sit nice and close to the ground, rare for an EV.

It feels every bit the sports car it claims to be, and when you step on the accelerator pedal it is ridiculously, enormously fast.

Even if you’re already at velocities higher than 100km/h, the e-tron can draw from a well of seemingly limitless torque to jolt you forward even faster.

One of its most impressive traits, and I think the e-tron GT shares this with the Taycan, is how the car seems to shrink the faster you drive it.

Particularly in RS trim with the four-wheel steer, this doesn’t feel like a two-and-a-half tonne, five-metre long grand touring monolith, responding to your inputs with the agility of a much lighter two-door coupe.

It ducks and darts around corners, and while its steering seems to have a noticeable artificial component, regardless of drive mode, the all-wheel steer isn’t as invasive as you think it’s going to be.

In fact, it’s only noticeable when driven back-to-back with the base car which doesn’t have it, with the RS having noticeably better road holding with the tech equipped.

It furiously holds onto corners, with the electric all-wheel drive and fat tyres keeping everything under control. You have to be really irresponsible in this car to get the tyres to even scream out in pain, let alone slip, a feat I suspect 90 per cent of buyers won’t come close to experiencing.

These observations, mind you, come from exclusively on-road use of the e-tron GT. It will be curious to see how it handles more punishing conditions on-track, for the rare set of buyers this will appeal to.

For those keeping it to road-use, the adjustable air suspension grants pretty impressive ride quality considering the size of this car’s wheels and its overall weight.

It’s excellent at smoothing out corrugations and shrugging off smaller bumps, but when dealing with bigger hits this car can’t quite hide its limitations. Things go from ‘ooh’ to ‘owch’ very quickly as the dampers and bump stops intervene.

On the whole though, this car is hugely impressive. Does it feel like a Taycan? Yes, actually. This is one area where the two EVs feel their most similar. But the Taycan is awesome, so this is high praise for the Audi.

All the key active gear is present, and refreshingly, aside from the arguably unnecessary laser-equipped LED headlights, nothing is on the options list.

The e-tron GT is equipped with autobahn-speed auto emergency braking with vulnerable road user (cyclist and pedestrian) detection, as well as intersection assist.

There is also lane keep assist with lane departure warning, adaptive cruise control, and blind-spot monitoring with rear cross-traffic alert and rear auto braking.

This combines with the clever all-wheel drive system and array of front, side, and curtain airbags to make for a theoretically safe car, although the e-tron GT is yet to be rated by either ANCAP or EuroNCAP.

The ownership package is yet to be confirmed, the M5 Competition will be covered by BMW’s three-year/unlimited kilometre warranty. 

Service intervals are condition, rather than time or distance, based, so the car will tell you when servicing is required.

Audis now have a competitive five year and unlimited kilometre warranty, and the e-tron GT also scores a separate and industry-standard eight-year warranty for its high-voltage battery components.

The additional ownership perks for this car are significant, however. Audi throws in complementary installation of a 7.2kW wall charger at your home, as well as a six-year Chargefox membership, making your energy consumption free from public outlets for the first six years of ownership.

There’s also free servicing for six years (covering the first three bi-annual or 30,000km visits). A truly premium car with no truly premium service costs? What’s not to like about that?