Tesla Model 3 vs Mercedes-Benz C63

What's the difference?

Tesla has done enough with the introduction of this Premium Long Range RWD variant to keep the Model 3’s head well and truly above water in an increasingly competitive segment. After more than six years it still looks good, with a pleasant cabin environment, plenty of performance and leading energy efficiency. Safety is top-shelf and it stands up well in terms of practicality and driving dynamics. 

That said, the ownership proposition is average, the determination to make so many functions screen-based is frustrating and the optional Full Self-Driving system is unconvincing. With the Model S and Model Y now discontinued globally it will be interesting to see how the Model 3 continues to evolve.

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.

After four years in market, a heavily upgraded version of the Model 3 arrived in Australia in 2023, the biggest visual changes being a reshaped bonnet, aero massaged overall profile and angular slimline headlights.

The boot lid now incorporates a lip spoiler and the tail-lights were remodelled to create a truncated, two-layer effect. And in true Tesla fashion, the standard 18-inch alloy rims are fitted with matt black-finish aero elements filling the gaps between the satin black wheel spokes. Two new body colours - ‘Stealth Grey’ and ‘Ultra Red’ - were recently added to the available palette. For reference, our test car's finish is 'Quicksilver'. 

It’s still clearly recognisable as a Model 3, but these relatively minor design changes have helped the mid-sizer keep up with the slew of sleek newcomers it now faces.

The interior was also given a substantial makeover, the expansive 15.4-inch central display screen backgrounded by an all-new wrap-around dash and revised console treatment, the former featuring a raised insert and the latter a two-device wireless charging station.

Introduction of this Premium Long Range RWD model also brought the small but significant addition of a physical indicator stalk on the left-hand side of the steering column, replacing buttons on the steering wheel. Big ergonomic tick for that.

Customisable ambient lighting lifts the tone, soft materials look and feel good and the doorcards, bins and armrests have been reprofiled into a more sophisticated arrangement.

Our test car’s dark grey and white synthetic leather trim combination lifts the mood as does light from the huge, two-panel glass roof. But beware, while white trim looks dazzling on the showroom floor it takes some extra work to maintain its schmick appearance in the day-to-day grind.

After seven years in market the Model 3 has aged well and still looks sleek and contemporary.

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.

At just over 4.7m long, more than 1.8m wide and a bit over 1.4m tall (with a 2875mm wheelbase) the Tesla Model 3 is a low-slung medium-size sedan. 

There’s plenty of space up front, a feeling enhanced by the standard panoramic glass roof and our test car’s white trim brightening up the cabin.

There are long, wide bins on the front doors with enough room for large bottles, a slim glove box (which opens only via an on-screen button, which is annoying) and a generous lidded storage box between the seats that doubles as a centre armrest.

The console houses two cupholders with another storage cubby ahead of them (both with sliding covers over the top) and the dual device wireless charging bay on the lower part of the dash under the media screen.

Switching to the rear, at 183cm I have a surprising amount of foot, leg and headroom when sitting behind the driver’s seat set to my position. The rear door aperture is surprisingly large which helps entry and egress.

Technically able to accommodate three passengers, the back seat is best for two full-size adults on anything other than a mid-length journey, although the flat rear floor helps ease pressure on the centre occupant.

There's a well-hidden fold-down centre armrest with cupholders, there are useful bins in the doors and hard shell map pockets on the front seatbacks.

The crisp 8.0-inch rear screen is a welcome entertainment option for back-seaters and there are adjustable air vents underneath it.

For power and connectivity there are two USB-C ports and a 12-volt socket in the front compartment, a USB-A in the glove box (mainly for dash cam and ‘Sentry Mode’ data storage) and two USB-C ports in the rear under the vents.

Boot space is a ample at 682 litres (the bootlid is adjustable for opening height) with an 88L ‘frunk’ in the nose. And if you need to tow a relatively light load like a box trailer or Jet Ski (or two) you can hook up a 1.0-tonne braked trailer (750kg unbraked).

While we understand it helps maximise battery space and reduce weight, we’re not on board with Tesla’s policy of providing a repair/inflator kit rather than a physical spare tyre. Even though this is likely to be a primarily urban cruiser, it’s not good enough. 

Then, there’s the Tesla app, an electronic Swiss Army Knife that facilitates everything from remote vehicle access and cabin ‘preconditioning’ to planning your route (complete with charging stops) and monitoring Sentry Mode (checking the vehicle’s surroundings and receiving alerts of potential threats).

The list of functions goes on and on, but suffice it to say the app is hugely handy. For example, ‘Dog Mode’ keeps the air con on with the car locked for the benefit of your four-legged friend and lets passers by know the doggo is safe via a bold message on the central screen. An internal camera, accessible via the app, lets you check-in remotely, too. Nice. 

Given its overall size and despite its conventional sedan configuration, the Tesla Model 3 offers efficient packaging and a heap of thoughtful features to enhance everyday practicality.

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 Tesla Model 3 Premium Long Range RWD is powered by a single permanent magnet synchronous electric motor producing a handy 235kW and in excess of 400Nm.

It sends drive to the rear wheels only via a single-speed, direct-drive automatic transmission. 

Kerb weight is 1747kg and Tesla claims 0-100km/h acceleration in a rapid 5.2 seconds.

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. 

Tesla claims a WLTP range of up to 750km for the Model 3 Premium Long Range RWD, the official EV term for which is… a lot. 

As mentioned earlier, at the time of the car’s local launch in October last year Tesla claimed it as the longest-range EV in Australia and at the time of writing nothing had arrived to change that.

Unlike the standard Model 3, which is powered by a CATL-sourced LFP battery, the Long Range RWD is fitted with a lighter, more energy dense NMC pack from LG with a total capacity of 82kWh (78kWh usable).

In terms of energy consumption, Tesla claims 12.5kWh/100km on the combined (urban/extra-urban) cycle and on test we experimented with liberal use of the accelerator pedal, higher than average freeway running and keeping the car constantly chilled during extremely hot weather, which resulted in an average of 15.7kWh/100km. 

Aside from that, more typical stop-start urban driving with occasional use of the ‘Chill’ (eco-focused) mode brings the number down to 13.1kWh/100km.

That’s an impressive performance, with even the upper test figure more than acceptable for a 1.75-tonne electric sedan.

Capable of accepting a 250kW fast charge, Tesla says the Model 3 Long Range RWD can take on 311km of range in 15 minutes, at that speed.

On a 150kW pylon we saw capacity go from 15-85 per cent (theoretically, 600km of range) in roughly 50min, although the charger fluctuated below peak output throughout.

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.

So, surprise, surprise, the Tesla Model 3 Premium Long Range RWD is quiet. But it’s quiet, even in the context of other EVs in this part of the market.

That’s thanks in part to acoustic glass in the front, rear and side windows as well as the dual-pane glass roof and the Bridgestone Turanza T005 EV tyres (235/45x18) featuring ‘B-Silent’ technology. Corny, but it works.

A kerb weight under 1.8 tonnes is relatively lightweight for an EV of this size and the Model 3 RWD is quick with 0-100km/h acceleration in a fraction over five seconds. There’s always plenty of pulling power under your right foot. 

Suspension is double wishbone front, multi-link rear and ride comfort is respectable rather than exceptional. Smaller bumps and irregularities find their way into the cabin but never to an alarming degree.

Steering sits in the middle-of-the-road between tactile and wooden, which is par for the EV course, although it's accurate and pleasingly progressive. Body roll, even in enthusiastic cornering, is modest. 

The physical brakes are ventilated discs front and rear although they don’t come into play all that often because the Model 3’s regenerative braking system is so good. Single-pedal operation soon becomes the norm. 

Our test car’s optional ‘Full Self-Driving (Supervised)’ will set you back $10,100 as a one-off payment, or $149 per month and Tesla says when using it, “Under your supervision, your car will be able to drive itself almost anywhere with minimal driver intervention”.

We engaged it for a 30km trip through suburbia, across the Sydney Harbour Bridge and into the city’s inner south. 

A rainbow-coloured magic carpet in front of the car graphic on the nav map tells you the system is engaged and although things went smoothly at first we soon sliced a bit off the inner oncoming lane as we turned right at a T-intersection, which was alarming. 

The system also has a consistent tendency to stick to the far right-hand side of the lane, stay five to 10km/h under the signposted speed limit and it continued to operate without my hands on the wheel, although I kept them there for 99.9 per cent of the drive (which is tiring when you’re not doing the steering).

Having been squeezed to the point where we couldn’t merge safely into a particular arterial road the nav took us on what’s known in the trade as a wild goose chase that had to be nipped in the bud. If I hadn’t known my way around it could have been a huge waste of time and (vehicle) energy. As much a nav issue as an FSD one, but overall, let’s just say, I’m not convinced.

Under the heading of miscellaneous observations, I’m not a fan of the on-screen gear position slider in place of a physical control. It’s needlessly fussy, although its ability to automatically switch between D to R (and back) during slow-speed manoeuvres is helpful. 

The software behind the car’s multitude of functions is exceptionally good, as is the ability to swipe in the vicinity of the temp and audio volume screen sliders, rather than having to hit them bang on and the blind-spot camera view which pops up on the screen when indicating on either side is handy.

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).

From January 1, 2026 all new Teslas sold in Australia have been covered by a five-year, unlimited kilometre warranty (including roadside assistance for the duration), up from four years/80,000km, previously.

A big step forward, no doubt, but that just gets Tesla to a base, mainstream market level with a dozen brands now at seven years, several at eight and three at 10 years (conditional).

The drive battery is covered for eight years/192,000km, which is in line with the category norm. And a Body Rust Limited Warranty covers rust perforation for 12 years, unlimited kilometres, which is reassuring.

Tesla servicing is condition-based, so there’s no fixed schedule, with a summary on the car’s touchscreen providing a record of when vehicle maintenance was last carried out and prompts for when they should be performed next.

In the absence of a combustion powertrain the emphasis is on things like wheel rotation, balancing and alignment, brake fluid testing, air-con servicing, camera precision, radiator cleaning and high-voltage battery maintenance.

Theoretically, if a workshop visit is flagged in the car’s system, it could include actions like a ‘Vehicle Health Check’ ($270), ‘General Diagnosis’ (270 per hour), brake fluid flush ($240.80) and replacement of both cabin air filters ($106.60).

Things like air-con desiccant bag replacement ($89.18), tyre rotation ($81.00), a wheels check - if tyre wear is abnormal ($81) and a wheel alignment ($225) are also set inspection and service items. All prices exclusive of GST.

In the States, the brand provides a range of estimated annual service pricing of between US$257 - US$499 ($367-$712), based on data collected by car buying specialist CarEdge. The suggested service range is around 20,000km and the first five annual estimates are at US$300 ($430) or less.

Tesla has 25 stores in Australia, not surprisingly covering mainly urban and larger regional centres, including four each in Melbourne and Sydney, three in Canberra, two each in Adelaide, Brisbane and Perth as well as one in Hobart.

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.