Audi e-tron GT vs Mercedes-Benz C63

What's the difference?

Anyone lamenting the demise of V8 and V10-powered internal combustion sports cars will change their mind after driving the Audi e-tron GT.

It is a phenomenal car and you can feel the engineering expertise that’s gone into making it. 

The e-tron GT feels at home on German roads and autobahns, but a drive on Australian roads could well reveal some flaws. We will wait and see.

Until then, the e-tron GT is one of the most deeply impressive cars I have ever driven. And if you’re fortunate enough to be able to afford a car like this, perhaps it’s your next (very fast) family car?

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

The Mercedes-AMG C 63 S Aero Edition is an absolute beast of a car, but it comes at a pretty hefty price. Yes you get a lot of performance, and the fact there are only 63 examples being made for Australia and New Zealand could be enough to get you to sign on the line. For me, though, if I was after a C 63, it’d have to be a wagon. It doesn’t need an Aero pack to look better.

You could argue the e-tron GT was already a stunner and didn’t require any visual changes, but Audi has still made a few tweaks. Thankfully, they are relatively subtle.

The 2025 e-tron GT gains refreshed front-end styling with a new front grille, headlights and lower bumper and air intakes. The look is inspired by Audi’s latest design language as seen on the recently revealed A6 Avant e-tron.

The S has more subtle front and rear styling, while the RS and RS performance take on a more aggressive and sporty look with a dramatic rear diffuser and different lower front styling. 

The RS performance further differentiates itself from the RS with an optional matt, darkened carbon roof and optional ‘carbon camouflage’ elements found in the embossed bumper, door trim, parts of the diffuser and side mirrors.

Audi has introduced some rather gorgeous new alloy wheel designs, some standard, some optional.

I had forgotten how stunning the e-tron is in the metal. You can see by its stance that it’s related to the Porsche Taycan - they share the 'J1' platform.

Despite the low-slung sports sedan vibe, they have their own distinct identities. If you’re after elegant clean design, you’ll likely favour the Porsche. But I am increasingly leaning towards the Audi on the design front.

Inside you get redesigned sports seats, a new steering wheel and fresh inlays, including sustainable wood on some grades. I love the new steering wheel, covered in Audi’s version of synthetic suede. BMW take note - you don’t need a big chunky steering wheel in a performance car. This rim is just right.

There’s new readout and graphics for the digital driver display and the carpet and floor mats are made of 100 per cent recycled nylon fibres. Audi’s used synthetic suede and leather throughout, and the non-leather grey cloth trim in the S is a knockout. But you can get real leather if you want.

Some of the grades we drove at the launch event come with Audi Exclusive elements which add unique touches and colours chosen by the customer, from the interior inserts, trim, stitching and more. Audi Australia isn’t saying too much but some of these Exclusive options might end up here eventually.

I’ve never been the biggest fan of the current C-Class Coupe’s styling. To me, it has always looked a little droopy, a little melted at the back. 

I have to say, the Aero Edition has changed my opinion somewhat, as the new graphic elements help lift it up a bit, visually raising its rear up like a stretching cat, tail in the air. I’m still not 100 per cent on it, but to my eye it’s better.

The carbon-fibre trim elements that have been added to the exterior certainly add some menace to the look, too, and I simply can’t help but constantly notice out of the corner of my eye the AMG pressing in the staggered, dished rims. At a glimpse, from a distance,  it looks like rim damage, but thankfully it’s not!

The staggered set-up does really add some width and mongrel to the look, as if it needed more, with its open maw lower bumper air dam, and the signature 'Panamericana' grille treatment which looks like an evil character out of a movie. If you know the one I’m talking about, let me know in the comments.

As much as the look matters when it’s parked in your driveway, it’s the cabin that arguably matters more, right? That’s where you spend your time, after all. Check out the interior images to see if you think it lives up to the exterior look.

The e-tron GT is a big car, so it has potential for family duties, but it’s also a sports car, and that means some compromises. 

The new front sports seats in any of the various trim options offer incredible levels of comfort, ample support and they’re well cushioned. This is a Grand Tourer so comfort is important and that box is well and truly ticked.

It’s low to the ground which helps with feeling connected to the road, and the multi-adjustable seats and steering wheel mean it’s easy to find your perfect driving position.

With the addition of new air suspension as standard, the e-tron GT has a neat trick. When you touch the door handle, the set-up automatically increases the vehicle’s ride height by up to 77mm to make it easier to get in and out of. \

Don’t expect much visibility out the tiny rear windscreen, but you can rely on the clear surround-view camera display. 

From the driver’s seat, everything comes easily to hand. The multimedia screen isn’t a stretch to reach, nor are the buttons on the stack and console. Thanks for keeping buttons, too, Audi.

Audi’s current multimedia setup is solid. It has big menu icons, logical menu steps and you can swipe across for more.

The ‘Virtual Cockpit’ digital instrument cluster is also excellent and easily customisable. The built-in sat nav shows up in multiple places if you like, such as the head-up display, instrument display or multimedia screen. During our extensive drive from Frankfurt, it didn’t miss a beat.

The optional panoramic glass roof has a cool feature. You can switch from opaque to clear with the touch of a button. And you can even have a mix of the two. Clever.

To maximise space, Audi moved the phone charger to inside the central bin. Given it is hard up against the side, it doesn’t consume that much room.

Elsewhere up front, smaller bottles will only fit in the door pockets if they are lying flat.

In a smart bit of design from Audi, the battery pack is split to accommodate deeper footwells for the rear passengers. So many electric cars, especially sedans, suffer from having the battery pack under the entire length of the vehicle's floor which means your legs sit awkwardly upright. Hello Tesla...  

As a result, you can sit like a normal human in the back of the e-tron GT, and there’s ample legroom behind my six foot-plus driving position. That’s helped by scalloping the rear of the front seats. Headroom is tight but that’s expected given the swoopy roofline. 

There’s no bottle storage in the rear doors, only enough room for a phone. You get lower air vents, seat heating controls and a central fold-down armrest with cupholders. 

The boot is long and the 60/40 split seats fold flat which is handy for loading long items. There are a number of nooks and a handy cargo net, too. Luggage space ranges from 405 litres for the S e-tron GT to 350L for the RS performance. There’s a sizeable front trunk for housing charging cables.

No two-door coupe is going to offer you the space and comfort of a sedan or wagon, that’s just a fact. But that only matters if you plan to actually use the rear seats. If you don’t, then the Coupe version of the C 63 S might be perfect for you.

Even so, I managed to (only just) squeeze myself between the seat and the door opening to slide into the rear row. This won’t be easily achieved by all attempters, especially on the driver’s side.

Let’s just say I probably looked like I was doing something very weird to the driver’s seat as I spider-manned my way in. 

The rear space is tight for someone my height (182cm/6’0”) behind their own driving position, with knees hard-up against the seat in front and not much headroom (my noggin’ was brushing the ceiling) or toe space (size 12s don’t fit so well) to speak of.

It’s certainly a selfish car. Or maybe it’d be fine for smaller kids. There are two spaces in the back, both with ISOFIX child seat anchors and top-tether points.

But there is storage in the back - cupholders and storage caddies either side of the seats, though the storage situation improves in the front zone, with bottle holders in the doors, cupholders between the seats, loose item storage under the media screen and a covered centre armrest bin, too.

The front cabin is a special looking place, with carbon-fibre abounding across the dash and nice trim on the doors. The AMG steering wheel is a sight to behold - it’s a flat-bottomed unit with carbon-fibre and Dinamica (that’s Benz talk for microsuede) trim: perfect for sapping sweat as you manhandle the C63 through the bends.

The seats are AMG Performance sports units up front, and the trim used is reserved for this model specifically: Nappa leather with yellow stripes. There are yellow details elsewhere, including on the rear seats, centre console and dash, and it certainly adds some visual excitement.

Media is controlled by a 10.25-inch display and Mercedes-Benz’s touchpad control system, but there is no touchscreen - rendering the Apple CarPlay and Android Auto smartphone mirroring technology somewhat tedious.

I’ve always had a gripe with screens that don’t allow touch but feature the tech that’s designed to transfer your phone’s screen to the media unit, and I can tell you the longer you spend twiddling the dial to get where you want to go, the more annoying it becomes.

The Burmester sound system has 13 speakers and is rather good, but I prefer the sound from the standard fit variable sports exhaust. So maybe that quibble with CarPlay isn’t that big a deal.

And if you just want to charge your phone, and there’s a second USB port up front, as well. Note: in non-Aero Edition C 63 models without the carbon-fibre interior pack, you also get Qi wireless phone charging, but it’s deleted from this variant and any model with the carbon pack.

The driver has a 12.3-inch digital info display to show where you are and what the car is up to, and there’s a head-up display as well. Yep, there’s standard sat nav with live traffic updates (and even live fuel price updates) - it’s just a shame the maps still look early 2000s-spec in 2D layout.

Cargo space is okay. The claimed cargo capacity or boot volume is 355 litres (VDA) with the rear seats in place. That’s small for a coupe of this size, and the shape of the boot (with a hump behind the rear seat) isn’t great as things do move around quite a bit.

But, thankfully, Mercedes has included its clever foldable storage box system under the boot floor - it goes where you might usually expect a spare wheel, but there isn’t one in this car. Instead you get Mercedes’ 'Tirefit' repair kit with an electric pump.

Look, I’m not likely to ever be in the position to say that a car that costs $188,600 plus on-road costs is “good value”, but to be honest, if you’re in that position, you’ll be getting plenty of car for your cash.

The Carbon Edition of the C 63 S Coupe adds $17,200 over the standard version of the high-performance two-door, but it adds a bunch of extras to help justify its price. A car like this is always going to be seen by some as a profligate purchase, right? You need to be able to justify spending an extra MG3’s worth of cash on this Edition. 

The noticeable exterior bits include an AMG Performance rear spoiler, a model specific front lip, rear diffuser, and side facings for the rear apron air vents. Carbon-fibre is used in the front apron A-wing, the side sill inserts, rear diffuser insert, rear spoiler and the side mirror casings. 

There’s more carbon-fibre inside the cabin, which we’ll cover off in the interior section. Other additions over the standard C 63 S Coupe include ceramic composite front brakes (402mm six-piston) and 360mm single-piston rear brakes, and there are “ultra-lightweight” AMG forged 'Matt Black' alloy wheels with 19-inch rims at the front and 20s at the rear. 

And in nice news, the car you see here has no optional extras fitted at all. The colour is 'Iridium Silver', one of only two options for this limited run model (the other available hue is Polar White, and both come at no extra cost).

Standard inclusions comprise leather interior trim, heated and electric adjustable front seats, dual-zone climate control, a 10.25-inch media screen with sat nav and smartphone mirroring, DAB radio, 13-speaker Burmester sound system, 12.3-inch digital driver info display, head-up display (HUD), ambient lighting, and performance items like active dynamic engine mounts, an adaptive AMG performance exhaust, a rear differential lock, and adaptive sports suspension.

Plus there’s a full-spec safety offering which we’ll cover in the section below.

Thinking about what cars compete with this one? There’s the Audi RS 5 Coupe (from $150,900), the Lexus RC F (from $136,636), and the BMW M4 Competition (from $167,829). So the C 63 S - which is already expensive comparatively - looks positively pricey in Aero Edition spec.

The fully electric e-tron GT has two motors - one on each axle, ensuring ‘quattro’ all-wheel drive traction.

For the S e-tron GT, the total system output is 430kW of power (or up to 500kW in launch control mode) and 740Nm of torque. 

That’s more power than the previous RS e-tron GT, and enough to get it from zero to 100km/h in 3.6 seconds.

The RS now pumps out 500kW (630kW in launch control mode, no total torque figure available) and can hit triple digits in 3.1 seconds, while the new RS performance flagship boasts impressive outputs of 550kW/1027Nm (680kW in launch control mode) for a dash time of 2.9 seconds. These 0-100km/h times improve in launch control mode.

A newly developed air suspension is standard across the range, and tech wizardry like active suspension and rear-axle steering are optional.

Open the shapely bonnet of the C 63 S and you’ll find a hand-assembled horsepower-monster engine with a printed name plaque to prove it.

The 4.0-litre twin-turbo V8 produces 375kW of power at 6250rpm, and 700Nm of torque from 2000-4500rpm. It runs a standard-fit nine-speed 'Speedshift MCT' (multi-clutch transmission) automatic, and it’s rear-wheel drive. And yes, that means it likes to boogie.

The claimed 0-100km/h time is just 3.9 seconds, and top speed is apparently pegged at 250km/h. Yeesh.

The name on the “Handcrafted by” plaque on this particular engine? Hat tip to you, Julian Rembold. This is quite a piece of work. 

Audi has reduced the weight of the battery pack by 9.0kg while also increasing energy density.

Audi has also improved the charging rate which now peaks at 320kW, up from 270kW.

The 105kWh lithium-ion battery on all grades can be charged from 10 to 80 per cent in just 18 minutes using a high-power charging station, according to Audi.

AC charging is 11kW and doing that at home will take about 11 hours from depleted to 100 per cent.

The update to the information in the instrument cluster includes details about current operating state of the battery, including temperature, a quick-charging forecast and the pre-conditioning status.

Driving range is impressive and runs from up to 609km on the WLTP cycle for the S e-tron GT, up to 599km for the RS e-tron GT and up to 592km for the RS e-tron GT performance.

Energy consumption ranges from 18 to 19.7kWh/100km for the S, 18.4-21.1 for the RS and 18.7-20.8 for the RS performance.

High numbers are what AMGs are about. Sadly that’s the case not only for performance outputs but also fuel consumption.

The official combined cycle fuel use claim for the C 63 S Coupe is 10.3 litres per 100 kilometres, and you need to fill it with 98RON premium unleaded fuel, too.

On test? Well, across a mix of different driving - urban, highway, back road and spirited stints - I saw an 'at the pump' return of 12.2L/100km, while the digital readout stated 12.0L/100km.

Given the performance on offer, and how much I took advantage of it during my week with the car, that’s not bad…

Fuel tank capacity is 66 litres. So go easy if you know there won’t be a fuel stop for a while.

Having the air suspension increase the ride height to get into the e-tron GT is useful, given how low to the ground it is. Once you’re in, you’ll nestle into the sports seats and feel a real connection with the road.

Audi’s generated EV noise sounds like the low, deep growl of a V8, but dialled down. It’s very cool.

The new RS e-tron GT is quick but it delivers acceleration in a smooth, linear manner. There’s no neck-snapping ‘Ludicrous’ moment here. Just straight line performance that will elicit the word ‘wow’ multiple times.

Picking up pace at speed is a breeze - as we discovered on Germany’s autobahns - thanks in part to a ‘push to pass’ button on the steering wheel that adds 70kW of power for 10 seconds, when you need to overtake quickly.

The steering is sharp, but almost a little too sensitive in the RS, to the point where you need to be conscious of your steering inputs. You don’t want to overdo it, but if you do, the onboard electricals should keep things in check. That beautiful steering wheel adds to the engagement.

Audi’s engineers deserve plaudits because they’ve somehow made a five-metre long, 2.3-tonne electric sports sedan feel light and nimble. 

It is dead flat in corners without a hint of lean or body roll and navigates tight bends with a surefootedness that is astounding. 

Accelerating out of a corner is executed without fuss and will bring a smile to your dial, helped in part to the optional rear-axle steering.

The technical wizardry that is active suspension - it uses cameras and radars to analyse the road surface ahead and moderate the dampers and the like accordingly - is impressive.

The ride quality of this heavy car with 21-inch rims is a surprise. You’ll notice road joins and bigger corrugations but overall it's quite composed.

And that’s part of the beauty of the e-tron GT. Its Porsche Taycan cousin is a more focused sports car. Whereas the Audi e-tron GT is a Grand Tourer or Gran Turismo if you will.

Yes, it’s incredibly powerful and is blisteringly fast, but it’s also a comfortable cruiser, and something you could easily live with every day.

The S e-tron GT could be all the Audi you need. It’s still incredibly quick, but not as powerful as the RS. It is the more subtly styled model which will appeal to an understated buyer.

A brief stint on a makeshift track in the e-tron GT performance grade highlighted how the active suspension, rear-axle steering and other tech gubbins help it hold the road so well.

It’s an extraordinary car to drive and taking a different approach to Porsche has served Audi very well indeed.

The advanced safety gear is well calibrated and not intrusive. While the speed limit alert can be annoying, the speed sign recognition is spot on. Let’s see how it goes with Australian speed signs next year.

Just one word sprang to my mind when it comes to accurately describing the performance on offer from this car. The word is ‘brutal’.

Smash the accelerator and the power and torque on offer is enough to make your eyes feel like they’re not doing the right thing anymore. You get pushed back in your seat with a surge, and your ears are also rewarded with one of the best soundtracks in the automotive world. 

The engine builds pace with enormous intent, and the sound that comes from under the bonnet and out the back through the exhausts is addictive.

Yes, there is an active exhaust button which you have to press to make sure that you hear all that noise if you’re running around in 'Comfort' mode, and during my time with the car it was active the whole time.

I had some questions from neighbours over the week that I had this car about whether it was actually nice to live with on a day-to-day basis. And the answer is yes, if you put it in comfort mode it’s surprisingly amenable. 

The ride is really well sorted at pace despite having a bit of that trademark low-speed wobble that seems to afflict Mercedes products from A-Class through to the GLE SUV. But it wasn’t bad enough to really bother me, as most of my time was on highways and backroads.

The steering is direct and accurate. The only thing you need to be aware of is that you will lose traction at the rear axle when you put your foot down hard. And for the enthusiast that’s exactly what you want. 

I know I want to feel the thing squirm under throttle. It’s a rear-drive V8 coupe, after all. You want to feel like you’re a vein in its bicep muscle; you know, the one you see in a weightlifter’s arms – the one that wiggles around a lot. You want to have that. Right?

On the performance front it is exceptional. Twist the little dial on the wheel to 'Sport' or 'Sport+' (I didn’t sample 'Race' mode as I wasn’t at a racetrack), and everything feels like it’s had a protein shake.

Even so, in that mode it steers brilliantly, there's a nice feel through the wheel, and the ride, while stiff, controls the body brilliantly when you change directions. 

The transmission is very good, too. In Comfort mode it can take just a second or two at first to become accustomed to the idea that you want to drive aggressively.

But in Sport mode, or when you select the manual transmission mode using the trigger button on the steering wheel, you will certainly get the most out of the engine. That’s what I did when I was driving it in a ‘spirited’ manner.

If you are just after that high-end Coupe cruiser experience, it’s a relatively quiet car (provided the surface below isn’t the coarsest of coarse-chip bitumen), with enough luxuriousness to make it feel premium as well as sporty. That’s an important thing to consider, especially at this price point.

There is no applicable ANCAP crash test rating for the Mercedes C-Class Coupe, nor is there one for the C 63 specification. But when it was tested back 2014, the sedan scored five stars - as you’d expect.

It is comprehensively equipped in terms of safety technology, including auto emergency braking (AEB) with pedestrian and cyclist detection (from 7.0km/h to 70km/h) and it’s active for cars from 7.0km/h to 250km/h.

Plus there’s lane departure warning and active lane keeping assistance (from 60km/h to 200km/h), blind spot monitoring with 'Active Blind Spot Assist' that will stop you from veering into oncoming traffic, front and rear cross traffic alert, and adaptive cruise control (Distronic) with traffic jam assist.

The C 63 also features 'Route Based Speed Adaptation', which can adjust your speed based on where the car thinks you are on the map. Just note - if you’re driving through new tunnels that haven’t been flashed to your car’s nav (as happened to me in Sydney during my testing week) - then you could find the car dramatically braking for surface-level intersections. You can switch the system off, thankfully.

There are nine airbags fitted, and while you mightn’t use the rear seats much there are ISOFIX and top tether points for both positions (yes, only two).

The e-tron GT comes with Audi’s five-year, unlimited kilometre warranty which is fairly standard for the premium segment. The battery warranty is eight years or 160,000km.

Impressively, the outgoing model comes with six years of complimentary servicing by Audi, and the schedules start at every two years or 30,000km. This should carry over for the new model but will be confirmed when the rest of the pricing and specs are locked in.

Mercedes-Benz is among the minority of luxury brands now offering a five-year/unlimited kilometre warranty plan - most still have three-year cover. So that’s a tick.

And the service intervals are pegged at 12 months/20,000km. Another tick.

Plus you can either pre-pay your service plan in three-year ($3800), four-year ($6000) or five-year ($6550) plans - roll it into the finance package, and it won’t hurt quite as much.

According to Mercedes, the three-year coverage option makes for a $900 discount over pay-as-you-go servicing.

Roadside assistance covers the five-year new car warranty period, too. So Mercedes seemingly takes good care of its customers. But if you have any concerns or questions over reliability, problems, issues or complaints about the C 63, check out our AMG C 63 problems page.