Mercedes-Benz C63 vs MG 3

What's the difference?

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.

Aside from its safety shortcomings and underwhelming powertrain, it’s easy to see why the MG3 has become a successful part of the brand’s line-up. If you’re driving around a rural centre like I was, it makes a lot of sense.

Whether you choose the Excite model, which has a bit more visual pizzazz, or the Core model, which is our pick of the range, the MG3 is well priced, has the media tech buyers are after, is a charming looking thing that comes in a range of great colours, and is smartly packaged, too. 

Thanks to the team at Orange MG for assisting us with this the loan vehicle for this review. Head to Orange MG for more information.

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.

It’s a fresh looking thing, the MG3. 

From its attractive front-end with “London Eye” LED daytime running lights, its Euro-look angular front bumper and chrome-trimmed grille, and its angular window lines, it really does have a distinct personality.

It looks a lot more modern and enticing than the first version of the MG3 sold here, and I have no doubt that a lot of buyers of the MG3 have been attracted by its sharp styling first and foremost. MG has done a tremendous job of creating a family look - it just happens that the family looks like it has been taking good care of itself, keeping active and trim, too.

The rear end isn’t quite as attractive, with the vertical tail-lights making it seem taller than it is. It’s still a nicely sculpted back-end, though.

On the Core model you’ll get some lower blacked-out design trim bits, and the wheels fitted are 15-inch alloys. 

The Excite model seen here is a little more, dare we say it, exciting to look at. That’s down to its body kit, consisting of lower chrome elements on the front bumper, a set of black side skirts, and a hatch-mounted rear spoiler. You get 16-inch alloy wheels, too. 

In terms of dimensions, it’s closer in size to the Kia Rio than it is the Picanto. With a length of 4055mm (on a long-for-its-size 2520mm wheelbase), a width of 1729mm and height of 1504mm, it’s a pretty chunky little unit. 

It is rather conventional in the way its interior is designed, however - there’s no sliding second row (like the Suzuki Ignis) or flip-folding seats (a la the Honda Jazz). Check out the interior pictures below to see for yourself.

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.

If you’ve owned the same old car for years and you’re setting foot in an MG3 for the first time, you’ll probably feel amazed that you can get an interior with interesting finishes, a high-tech screen and decent materials at this price point.

Earlier versions of the MG3 were nowhere near as good inside as the current model, which has been on sale since 2018. It’s not perfect, but there are plenty of things to like.

The seats offer plenty of adjustment, including a huge amount of height adjustment for shorter drivers. The seat is comfortable, though some drivers might find it hard to get the right position: there is no reach adjustment for the steering wheel (only rake adjust), and you can’t adjust the seatbelt height, either. 

I really like the seat trim which is a broad tartan design (with “synthetic leather” bolsters and contrast stitching in the top-spec Excite), mirrored by an etched tartan aluminium trim piece on the dashboard - it looks really smart, even if my OCD radar was set off by the fact the trim wasn’t aligned to match perfectly between the cushion sections. Take a look at the interior pictures to see what I mean.

There are some really nice elements to the cabin. Things like the 'lock' and 'unlock' button on the driver’s door, which looks like it has been stolen directly from Audi’s parts catalogue. The same can be said for the speedo instrument font. 

There’s no doubt that it’s built to a price, but it doesn’t feel anywhere near as cheap as you might expect. We’ve criticised Audi, VW and Skoda for cutting costs with hard plastic trims on doors and dashboards, and the MG has plenty of hard plastics, too - but it’s expected at this price, not double it.

There’s a standard 8.0-inch touchscreen media system with AM/FM radio and Bluetooth phone and audio streaming, plus USB connectivity and smartphone mirroring - meaning you get Apple CarPlay, essentially negating the need for sat nav if you use an iPhone. You can option a GPS navigation system on the Core model, but satellite navigation comes standard on the Excite. There's no Android Auto mirroring available at all, though.

In previous models from the SAIC stable - including the LDV T60, and MG ZS - I had troubles with the media screen, but the version in the MG3 Excite I drove was quick and problem free, even when disconnecting and reconnecting my phone multiple times. 

There are other little things that could be improved, like the fact the trip meter is difficult to navigate, and there’s no digital speedometer. Also, the digital climate control in the Excite model shows up on the media screen, though by way of a graphic rather than a temperature number. In the base model Core there’s a simpler manual a/c system. 

The steering wheel has a part leather trim with perforated edges which makes it look and feel a little bit sporty – and it has a flat bottom as well, which will appeal to the sporty-minded buyer. There are stereo and cruise control buttons on the wheel, but the stalks behind are “back to front”, with the left stalk for indicators and lights, and the right for wipers. 

As for storage, up front there is a single cup holder between the seats, a couple of small storage sections including a trench for a wallet, and another storage section in front of the gear selector - that’s where the MG3’s single USB port is, too.

The front door storage includes bottle holders, and there are soft padded elbow pads on the front doors - which is more than we can say for some of those aforementioned Euro brands.

With the driver’s seat set in my position (I’m 182cm tall), I had enough back seat space to be comfortable. There was enough knee room and toe room, and reasonable headroom if I sat perfectly still - although the slightest tilt of my head to the outer side of the car saw my noggin contact the headlining. Rear seat comfort is okay - the backrest is a firm, but there’s good visibility out the windows. There are dual ISOFIX child seat anchor points, and three top-tether points for baby seats. 

In the back the storage is minimal. There are two map pockets, but no door pockets, and there’s no flip-down centre armrest with cupholders. But there is one large pocket in front of the middle-seat rear passenger which would do for a bottle. The back seat also misses out on soft elbow pads on the doors. 

Boot space is good for a car in this size segment. You’ll only really do better if you buy a Honda Jazz or Suzuki Baleno, as the MG3 offers a deep and boxy cargo zone, with a cargo capacity of 307 litres to the cargo cover. 

Need more luggage capacity? The back seats fold down in a 60:40 split, alleviating 1081L of space - though the load-through is limited as the seats don’t fold completely flat. Or you could fit a roof rack. 

The success of the MG3 in Australia has been largely driven by its price. 

And no wonder - pricing for cars of this size has increased steadily, and plenty of brands have found their light cars in the "too hard" basket as a result.

But the MG3 is still relatively cheap. Prices have jumped over the time since we drove this particular car, but they're still sub-$20K for all models in the range.

For context, the 2020 model started at just $16,490 drive-away for the Core model and topped out at $18,490 drive-away for the top-spec Excite, and those prices were the RRPs listed on MG’s site at the time.

But now the MG3 has become a bit pricier - the current pricing for the range is up, with the base model Core now $18,490 drive-away, while the Core with Nav model costs $18,990 drive-away, and the top-spec Excite grade is a Macca's meal short of twenty grand at $19,990 drive-away.

Wondering what features you get when it comes to the models in the range? It's pretty simple, so let’s run through what each model gets.

The Core gets 15-inch alloy wheels, cloth tartan finish seat trim, auto on/off halogen headlights with LED daytime running lights, manual air conditioning, electric windows, electric mirrors, and a leather steering wheel with audio and cruise control buttons. There’s a space-saver spare wheel, too.

The media system includes a 8.0-inch touchscreen with USB connectivity, Apple CarPlay (no Android Auto), Bluetooth phone and audio streaming, and AM/FM radio. There’s no CD player, and the Core model gets four speakers. If you're keen on sat nav, you can step up to the Core Nav model, which adds $500 to the bill.
Stepping up to the Excite nets you a few extras like 16-inch two-tone alloy wheels and a body kit, body-coloured mirrors, vanity mirrors in the sun-visors, and synthetic leather trim on the seats with contrast stitching. 

The Excite also includes GPS sat nav as standard, and steps up the sound system to be a six-speaker unit with “Full Vehicle Yamaha 3D Sound Field”.

Interested in the safety spec inclusions? Read the safety section below for what’s included, and what’s missing.

Our friendly MG dealer let me know that he can’t get enough of the Tudor Yellow models, and that colour - as well as Dover White and Pebble Black - are no-cost optional hues. You should bare in mind that Regal Blue metallic, Scottish Silver metallic and Bristol Red metallic (as seen here) will set you back an additional $500. Looking for orange, green or gold paint? Sorry, no can do.

As for accessories, beyond floor mats there’s not a lot to speak of. Oh, and those wishing for a sunroof? No chance… unless you’re handy with a Sawzall. Note: do not cut a hole in the roof of your car. 

While the prices have gone up since we originally published this review, the MG3 still scores strongly for pricing and specs, because the market has moved up, too, and like-for-like it's still cheaper than almost all of its rivals - Picanto excluded.

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. 

Keen to know the engine specs for the MG3? Well, it’s pretty simple on the specifications front.

There’s just one motor available: a 1.5-litre four-cylinder non-turbo petrol engine, dubbed NSE Major by MG. 

It has class competitive outputs of 82kW (at 6000rpm) and 150Nm (at 4500rpm). It is only available with a four-speed automatic transmission and front-wheel drive. There’s no manual transmission available anymore - it was available in the earlier MG3s, but no more. 

While some competitors offer higher-powered flagship variants that act as the horsepower hero of the range, there’s no such variant in the MG3 range. Not yet, anyway. For now there’s just one engine size, no turbo, and no diesel or EV models to speak of either.

The tare mass/tare weight for the MG3 hatch is 1170kg, which is a bit heavier than a Mazda 2, but pretty much on par with a Kia Rio. 

Considering a caravan holiday with your new MG3? Maybe think twice - the maximum towing capacity is just 200kg. 

If you’re worried about engine problems, clutch problems, or have questions about the battery, gearbox, or the oil requirements, be sure to stay tuned to our MG problems page. And if you're curious about whether it has a timing chain or timing belt? It's a chain.

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.

The combined cycle fuel consumption claim - which is what the brand claims the vehicle should use across a mix of driving situations - is the same across the MG3 line-up: 6.7 litres per 100 kilometres.

During my time with the car - which consisted of exactly 100km of mixed driving - I saw an at-the-pump fuel economy return of 7.7L/100km, which is decent.

The fuel tank capacity of the MG3 is 45 litres - meaning a theoretical mileage per tank of about 580km. It runs on regular unleaded (91RON), too.

Just be aware, the filler neck of the fuel tank is a little less angled than some other cars, so you might find it can splash back when it ‘clicks’ the first time.

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.

You might think of MG as a sports car brand - that’s what they built back in history, after all, and those are the reminiscences the company is hoping you’ll have when you see the famed octagonal badge.

And of the current crop of models that MG sells in Australia, the MG3 is undoubtedly the sportiest. 

That comes down to its driving manners, steering and ride - but not the engine and transmission.

The powertrain feels to be lacking enough power and torque to make it feel light and zippy when accelerating. The automatic transmission doesn’t make the greatest use of the engine, and can be indecisive when climbing hills or when you ask more of the car. Oh, don’t even think about a 0-100 performance claim - no such number exists.

In urban driving at lower speeds it’s fine. Between traffic lights and encountering roundabouts, and there’s not much to complain about. It doesn’t have any lag or lurch from a standstill, and is smooth and quick enough to get away from rest, too.

It’s just once you start to ask more of the engine and transmission that you notice that things could be better. There is, at least, a manual shift mode for the transmission to allow you to take control of the shifts, and there’s a sport mode too, which will hang on to gears and quell the indecision of the transmission to a degree.

On the open road it gets along fine, sitting at the speed limit without much fuss - although once you encounter a hill, you will notice the speed drop off a little. And the cruise control seemingly has a bit of a mind of its own, with a set speed displayed at 100km/h, I noticed the speed varying between 90km/h and 110km/h, depending on the terrain.

It’s the road holding, grip, handling and steering that help it live up to the badge, with steering that has a nice hefty weight to it and good directness at pace or around town. It even offers a little bit of feel through the wheel, which is welcome. That grip was surprising given the tyres fitted to the Excite’s 16-inch alloy wheels (Giti GitiComfort 228 tyres in 195/55/16 size).

The ride is tuned with a firmer character to it than you might expect. It’s not to the point of discomfort, and nor is it fidgety or clumsy over potholes or sharp edges. And that tune for the Macpherson strut front suspension and torsion beam rear suspension means that it feels plenty grippy in corners. Over my drive loop - incorporating sweeping bends and tighter twists - the MG3 stuck itself to the road commendably, with no noticeable skittishness to speak of. 

Indeed, I kept thinking that the suspension tune reminded me of a VW, Skoda or Audi city car - assured, confident, and ultimately a bit of fun.

The braking performance was good, too - it pulled up true and straight under heavy braking, and offered decent response at city speeds, too.

One minor criticism was some noticeable wind noise from around the windscreen pillar / mirror area, which was evident at speeds from 70km/h up.

Safety technology is the MG3’s biggest shortfall. There’s no ANCAP crash test safety rating to speak of, and the MG3 doesn’t come with any form of auto emergency braking (AEB), which is disappointing given the tech has been available on affordable city cars since 2013 (the VW up! was an early benchmark). 

Even the facelifted Mitsubishi Mirage has AEB with pedestrian detection, but the MG3 doesn’t. Nor does it come with lane keeping assist, lane departure warning, blind spot monitoring, rear cross-traffic alert or rear AEB.

So what do you get? The range comes standard with a reversing camera, rear parking sensors, electronic stability control, and six airbags (dual front, front side, full-length curtain). And that may be enough for you, but we know you can get more safety tech in rival cars, so it can’t score well against this criteria.

Where is the MG3 built? It’s made in China. 

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.

I kept thinking about one particular thing over my time in the MG3 - the warranty. It’s such a great peace of mind move from the company to back its cars with a seven-year/unlimited kilometre warranty plan. 

If your brain works like mine, you could calculate it out and see the purchase of the MG3 completely differently: what about thinking of it as a $2500-ish-per-year investment, and at the end you get a free car…! The same can be said of the Kia Picanto and Rio, though.

That warranty should put your mind at ease when it comes to reliability, problems, common faults and issues, as any required fixes are set to be covered by the brand over that period. And buyers get seven years of roadside assistance included, too.

Maintenance is required every 12 months/10,000km, whichever comes first. That’s a bit more regular than some rivals (most have 15,000km intervals), but the brand backs its cars with a seven-year fixed service cost plan. Servicing costs averaged out over the first seven years/70,000km of ownership equate to $382 per visit (before GST), which isn't cheap, but nor is it expensive.

Here's a rundown of the recommended service costing (all prices pre-GST): 12 months/10,000km: $231.76; 24 months/20,000km: $385.23; 36 months/30,000km - $379.72; 48 months/40,000km - $680.74; 60 months/50,000km - $231.76; 72 months/60,000km - $533.19; 84 months/70,000km - $231.76.

Keep the service logbook stamps up to date in your owners manual - it’s a ticket to better resale value.