Ford Fiesta vs Mercedes-Benz AMG GT

What's the difference?

The Fiesta ST is an addictive car to drive. It's a modern classic and hard to beat when it comes to engaging performance and smile-inducing dynamics. Add in excellent value for money and you have a certified performance car bargain. 

The GT63 4Matic+ is a breathtaking example of everything that Mercedes-Benz and AMG are.

Ferociously fast, incredibly agile and superbly sophisticated, it should be on anybody’s shortlist, if that also includes a Porsche, Aston Martin, Maserati or even a Lamborghini. And it’s definitely much more than yesterday’s SLC ever was – for similar money in today’s terms, as it turns out.

But, around Tasmania’s glorious roads at least, the Mercedes-AMG lacks the ride comfort and road noise isolation to be a fully-rounded-out GT, and that’s a disappointment for a brand with such formidable history in making such cars.

The styling changes ushered in by the 2022 update are subtle. The Fiesta ST gains a revised front fascia with LED Matrix headlights, a larger grille with a repositioned Ford badge, and restyled bonnet and bumper. 

It gets a fresh 18-inch alloy wheel design and black tail-light surrounds at the rear. It also comes in two new exterior paint colours - 'Mean Green' and the 'Boundless Blue' of our test car.

The current-generation Fiesta ST has an appealing design that represents a clear evolution of its predecessor, and, arguably, it didn’t need much work this time around.

The ST’s sporty bodykit adds a touch of aggression but not in a boy racer sort of way. It’s a classic hatchback design with a bit of an edge. 

This is still clearly a Mercedes AMG GT coupe, like the 2014 C190 original, but a ground-up redesign sees it subtly yet significantly altered.

Some 270kg heavier than before, the larger-in-every-dimension body combines aluminium, steel, magnesium and fibre composite materials for improved rigidity and a lower centre of gravity. Length (4729mm) and wheelbase (2700mm) have been stretched by 177mm and 70mm respectively. Width (1984mm) and height (1352mm) are also up.

The nose treatment is similar to before, especially with the bulgy bonnet and signature vertical slatted grille fitted. These, combined with the LED digital headlight shape effect, is reminiscent of, but far-better executed than, the goofy-looking MG5’s face.

Underneath, it's an all-new platform shared with the SL, with the rear transaxle of the old car replaced by a permanent AWD system, leading from 46:54 front/rear weight distribution to 50:50 as a result.

That aggressive, exaggerated cab-backward/ultra-long bonnet silhouette that visually connected it with the SLS gives way to more-conventional and practical coupe proportions that is striking if not especially original, since they do look quite 911-esque. Along with the longer wheelbase and wider tracks, the result allows for two small rear seats to be fitted, while liftback cargo access remains.

Similarly, in the name of way-more usable interior packaging, Mercedes-AMG says it pushed the driving position nearly 180mm forward compared to the previous GT. Let’s see what that all looks like inside.

As part of the update, the Fiesta ST gains new Recaro front sports seats that are firm and hug the body tightly. You feel well supported when cornering. The mix of synthetic leather and suede looks spot-on.

Like a number of sports-focused models, the ST features red stitching throughout the cabin - on the steering wheel, gearbox gaiter and air vent surrounds - and while it’s ubiquitous, it’s still a nice touch.

The chunky perforated leather steering wheel feels nice to touch, as does the metal gear knob. 

Cabin materials are a mix of soft-touch and hard plastics, and there’s carbon-fibre-look inserts on the dash.

There’s no denying Ford’s dash design is a huge improvement over the previous-generation Fiesta that ran from 2009, but the current model still lacks the polish of the VW Polo. It’s about on par with the Hyundai i20 N, although the Ford’s layout is a little busier.

In saying that, it’s hard to fault the cabin’s functionality. It has a deep central storage bin, which is larger than most cars in this category, a decent sized glove box, two-and-a-half cupholders in the centre console and storage for narrow bottles in the doors.

There’s a wireless charging dock behind the gear shifter, two USB ports (one in the storage bin and one next to the charger), as well as a 12-volt charger.

It’s nice to see the ST still has a manual park brake, too.

The facelift introduced a 12.3-inch fully digital instrument cluster, and while some may lament the loss of analogue dials, it’s nice to see Ford taking the opportunity to improve the tech.

The multimedia is housed in a smallish 8.0-inch digital screen sitting atop the centre stack and it runs Ford’s Sync 3 system. 

Sync 3 functions well, is hard to fault and the menu layout is easy to navigate, but it is being left behind by competitors with more modern and appealing graphics. The latest version in the new Ranger will no doubt be a major improvement, but we won’t be seeing it in this generation of Fiesta.

The diminutive size of the Fiesta ST is more apparent when sitting in the rear seats. It’s pretty tight behind my 183cm (6ft) driving position, with my knees hitting the rear of the front seats. 

It’s a cramped space that’s not designed for long trips by adults. It has redundant tiny rear-side windows behind the C-pillar, but on the plus side, there’s acres of headroom. 

It lacks rear-seat air vents and the closest USB port is in the front centre storage compartment. Taller bottles won’t fit in the doors and it lacks a centre fold-down armrest, but it has map pockets.

The rear seats are flat and the Fiesta has outboard ISOFIX points for child seats.

Realistically, most people buying a car like this aren’t using it to haul children around so think of it as a two-seater with handy rear-seat storage.

The rear seats fold 60/40 but not flat. A space-saver spare wheel lives under the boot floor and it has a high boot lip, meaning you have to lift items up and over to get them in. 

At 311 litres, it’s a decent sized boot with usable space. It’s just one litre more than the Hyundai i20 N, and six litres more than the Polo GTI.

The first impression inside is that of space, despite the falling roofline and coupe-like upsweep of the side windows and you look back. While, again, similar to a 911s, a kink at the door gives the GT a unique character.

Even larger people will appreciate the generous amounts of room up front, with space to stretch, sat in sumptuously comfy bucket seats. Note that the standard ones are better than the racier but firmer Sports versions.

The driving position is perfect, ahead of a dashboard that is very typical modern Mercedes in appearance and layout.

To that end, the tablet-style integrated touchscreen (11.9 inches) is clear, fast and intuitive once time is taken to learn it. And points are also won for the multi-configurable electronic instrumentation, that allows for a variety of screens, including track, classic and minimalist views.

The trademark turbine air vents, the quite beautiful material and trim finishes and just the general solid feel are further typical contemporary Mercedes cabin treatments, as are the excellent ventilation and ample storage options.

And while rear vision isn't great, that's what cameras are for. It's all pretty much on brand.

It is a shame, given how elevated the Mercedes-AMG engineering is underneath, that the GT’s interior look and ambience is so similar to those of a (albeit higher-spec) C-Class or GLE. It's simply not as special as some of the company’s previous sports cars.

More annoyingly, the ride is too firm and bumpy for a GT, and this has the unhappy effect of provoking random rattly trim sounds within the cabin. It’s a bit like scrunched-up cellophane. In a $420K (as tested) Merc, that’s very disappointing, especially as it can be heard over the copious amount of road and tyre noise droning through, particularly on coarser bitumen surfaces.

Further back, the rear seat is strictly two-plus-two, and nobody over 150cm tall is recommended to travel there by Mercedes itself. That sloping roofline is the culprit. That said, brief trips with a bowed head are possible, as the fixed cushions and split-folding backrests are actually surprisingly comfy. But only for short journeys. Kids should love it though, and the second row does open up the GT’s usefulness enormously.

As does a near-doubling of the AMG’s cargo capacity, jumping 146 litres to 321L with backrests erect, to a whopping 675L (+325L) in two-seater mode. The flat floor is accessed via a large electrically-operated liftback door, offering quite a large aperture for easy loading/unloading.

Having no spare wheel helps here, with a tyre inflation kit included in lieu of that.

Meanwhile, at the front, under the bonnet, things have definitely changed for the better as well.

Starting from $370,400 (all prices are before on-road costs), the Mercedes-AMG GT63 4Matic+ is priced and positioned as something of an eagle amongst some pretty delectable doves, given its combination of four seats, 430kW of power, 800Nm of torque and four-wheel drive.

No rival equivalents can match the Mercedes on paper. The 398kW/610Nm 911 Carrera 4 GTS T-Hybrid offers less power but starts from $400,000-plus. The 410kW/650Nm GranTurismo Trofeo begins at $450K, the 500kW/800Nm DB12 from $455K and the 404kW/470Nm Continental GT from $460K.

Only the 460kW/750Nm BMW M8 Competition comes closest to the Mercedes-AMG, from $380K.

Side note, today’s GT is only slightly more expensive than what the 450SLC was nearly half a century ago when adjusted for inflation.

And, just like with that classic old Benz, it shares much with the brand’s legendary SL convertible stablemate – including, in this case, standard all-wheel drive and active rear-axle steering… aka 4WS to select third and fourth-generation Honda Prelude owners out there.

What else does $400K-plus buy you? As you’d expect, the GT63 4Matic+ comes choc-full of standard equipment, much of it typical of the luxury coupe breed, with leather-covered and electrically operated everything.

How about a front-axle lift system with GPS-enabled memory that automatically raises the GT’s nose to help clear bumps and then remembers to do so next time?

There are climate-controlled AMG sports seats with inflatable bolstering and massaging functionality, a fixed glass roof, a head-up display, augmented-reality satellite navigation, 360-degree surround views, performance telemetry data as part of an extensive multimedia system, an 11.9-inch portrait touchscreen, 11-speaker Burmester audio, a handsfree-powered tailgate, 21-inch alloys and cutting-edge driver-assist safety tech. More on that in the Safety section below.

Then there are the myriad option packs, bumping the GT63’s price up towards $500,000. These include a $2.7K seat trim package; a $10K AMG Night Package that adds darker trim treatments (often where chrome was); an aerodynamics package with fixed spoiler replacing the standard active spoiler; a $2.6K AMG Performance Seat package; a $13K Carbon Fibre package and $13.2K Ceramic Brakes.

Now, while the new GT does ditch the previous model’s unique rear transaxle spaceframe pioneered by the gull-winged SLS of the early 2010s, the resulting longer wheelbase and shorter overhangs do provide less outlandish and more practical design.

Let’s check that out in more detail. 

Under the Fiesta’s cute bonnet is Ford’s 1.5-litre three-cylinder turbocharged petrol engine delivering 147kW at 6000rpm and 320Nm at 4000rpm - the latter is an increase of 30Nm over the pre-facelift model.

Interestingly, it now matches the power and torque outputs of the Polo GTI. The i20 N pumps out 150kW and 304Nm.

The engine is exclusively paired to a six-speed manual gearbox - there is no auto transmission available - and it is front-wheel drive.

There’s a plaque signifying which engineer “handcrafted” the GT’s engine – in this case, the famous M177 in 3982cc, 4.0-litre twin-turbo intercooled V8 petrol guise.

Delivering 430kW of power at 6500rpm and 800Nm of torque from 2500-4500rpm, it sends drive to all four wheels via a nine-speed multi-clutch transmission (dubbed MCT in AMG-speak), catapulting the GT63 4Matic+ from 0-100km/h in just 3.2 seconds, on the way to a top speed of 315km/h.

How does it do that?

With AWD, the GT is now nearly 15 per cent heavier than before, but it still manages a punchy 218kW/tonne. Active aerodynamics over, inside and under a more-rigid body structure also helps.

The AMG 4Matic+ AWD system goes from 50/50 front/rear, to 100 per cent rear, variable torque distribution according to conditions and settings, and backed up by an electronic limited-slip differential. Among the many driving settings are Race Start, Drift Mode and good-old Comfort, if it all becomes too much.

Also keeping all that performance in check is a high-performance composite brake setup with improved cooling for faster responses.

Interlinked active roll bars improve body control, the five-link independent suspension features adaptive dampers for a softer ride.

And, as for that 4WS tech, the rear wheels steer opposite to the fronts at up to 100km/h (by some 2.5 degrees) for tighter and tidier handling, or 0.7 degrees in the same direction above 100, for greater stability and road-holding.

Its effect on the way this near-two-tonne coupe zigs and zags around corners is something you need to experience to really appreciate.

Ford claims the Fiesta ST has an official combined cycle fuel use figure of 6.3 litres per 100 kilometres. 

After a week of predominantly inner city and freeway driving, we recorded a much higher 10.2L/100km. However, that was very shortly after an enthusiastic back-road blast to test its performance chops. We did see single-digit numbers throughout the week prior to that.

The Fiesta requires premium 95RON petrol and it has a 45-litre tank. CO2 emissions are 144g/km of CO2.

Actually, the GT’s economy isn’t horrendous considering how fast it can go.

Even blasting a few times around beckoning country roads, we managed an indicated 13.0L/100km, which is an improvement on what Mercedes-AMG says the GT averages the 14.6L/100km average that Mercedes-AMG officially states.

That translates to a carbon dioxide emissions rating of 334g/km.

Using 98 RON premium unleaded petrol, an average of just under 480km between refills of the 70L tank is possible. The urban run sees consumption rocket to 21.8L/100km (for just 321km of range), or 10.4 out on the highway run, meaning that over 670km is possible should you decide to drive in a docile manner.

It’s easy to find your ideal driving position in the Fiesta ST, thanks to the reach and height adjustable steering wheel and the adjustable seat.

Aside from the extra 30Nm dollop of torque, Ford hasn’t changed anything else about the Fiesta ST mechanicals for 2022, but arguably, it didn’t need to.

The pre-facelift model could cover 0-100km/h in 6.7 seconds, and while Ford has not revealed whether that has changed with the facelift, it feels about right.

It’s brisk from a standing start, without being neck-snappingly quick, but there is strong urge and a lack of noticeable turbo lag. There is, however, some axle tramp on take-off, particularly in the wet. We also detected some torque steer when pushing hard up a hill, but it was minimal. 

Speaking of, the little three-pot turbo engine is utterly unfazed by steep hills - it just keeps adding speed. A light kerb weight of 1218kg helps here. 

The three-pot turbo engine sounds wonderful when accelerating, and the Fiesta ST begs to be driven hard.

The engine is perfectly matched with the slick shifting six-speed manual gearbox that has lovely short throws and is a joy to use. Even if Ford offered an auto with the Fiesta ST, it would take away from the driving experience.

'Sport' mode ups the growl from the engine and throttle response, but it’s not a dramatic departure from 'Comfort' mode.

The ST’s strong brakes are bordering on sensitive, but the heavily weighted steering is incredibly sharp.

On a back road run, the front-wheel drive Fiesta ST comes alive, hugging corners confidently. 

On bends that would’ve seen many other cars come undone, the Fiesta’s tight, balanced chassis, grippy tyres and the standard mechanical limited slip differential ensure it maintains its composure.

The ride is undeniably firm, particularly around town in urban areas - you feel every speed bump. My partner found the ride a bit too much at times, but I was far more forgiving.

The Fiesta feels solidly built and has a level of refinement that’s missing from the likes of the Suzuki Swift Sport and Hyundai i20 N.

However, the cabin could do with more noise deadening materials as it can be quite rowdy at speed and on coarse chip roads. Another negative is the massive turning circle - a bit odd for a city-focused light hatchback.

But these are things I could happily live with. During my week with the Fiesta ST, I made any excuse to jump behind the wheel and go for a drive.

Me: “I’m just going to run to the shops to get pasta.”

My partner: “We’re not cooking pasta this week.”

Me: “Yeah but you never know when you need pasta. Bye!”

Nobody will drive the GT63 4Matic+ and think, ‘Oh, this is OK’, because its breadth of performance is phenomenal.

No matter which mode you're in, from Comfort through to track-tuned Race, the Mercedes-AMG blends forceful pace and commanding control without ever breaking a sweat.

Flex your right foot and the two-tonne coupe bounds into action like a giant on a mission, striding past posted speed limit signs in nanoseconds and way, way faster than the law will stand if diligence isn’t exercised.

And there’s no point relying on seat-of-your-pants sensations, either, because the chassis below embraces the road with an almost zealous devotion. Which is astounding, given how agile the four-wheel steering-enhanced handling is.

The 63’s super power is exactly that – it dulls your sense of speed. One tester admitted to exceeding 150km/h before noticing. An odd confession considering the sonic boombox that is the bi-turbo V8’s howl.

But jailbait performance is not even the 63’s most lingering joy. That would be its steering perfection, that delivers that rare trifecta of keenness, crispness and communication. The wheel feels eager and alive in your hands, even when powering between tight turns, backed up by sensational grip and control. How can a two-tonne GT handle so sharply?

Warm, dry roads were the order of the day, so we can’t tell you how the 4Matic+ permanent AWD system deals with wet or slippery surfaces, but the slick multi-clutch transmission, seamless torque-vectoring tech and sticky tyres more than cope with the 63’s formidable outputs.

So, that's the gushing part out the way, then.

Despite the adaptive dampers, rigid architecture and exquisitely sophisticated suspension, the ride is simply too stiff in Comfort mode, and downright jittery on some of the Tasmanian roads we tested on, for the 63 to be considered a true luxury grand tourer. It just isn't comfortable, luxurious or supple enough.

Plus, grippy as they are, the 21-inch wheels transmit too much road and tyre noise through to the cabin, meaning that the GT isn't as quiet as you'd hope. Add the aforementioned trim squeaks, and the expected cocooned silence isn’t always there.

The upshot is that the 63 possesses more of a sports car character than a luxury GT character. Great news if you're a 911 type buyer and are seeking a high-performance 2+2 alternative, but a disappointment if comfort and refinement are priorities.

Still, it is impossible not to be deeply moved by this Mercedes-AMG.

While the GT doesn’t score an ANCAP rating – probably because it’s too expensive to crash test – we’d wager that it would be above-average, given Benz’s track record as a pioneer in this field.

That’d due to the scores of active, passive and driver-assist safety features fitted, from multi-faceted autonomous emergency braking (AEB) and lane-support systems to Mercedes’ PRE-SAFE tech that anticipates a crash and then prepares the car for impact.

More specifically, the GT includes Active Lane Change/Keep Assist, adaptive high beam as part of its megapixel LED set-up, adaptive cruise control, Cross-Traffic Assist, Evasive manoeuvre support, an emergency services call-out system, 360-degree camera views, pedestrian protection bonnet and eight airbags.

In other Mercedes products of today, AEB operating parameters are 7-80km/h for vulnerable road users like pedestrians and cyclists, and from 7-250km/h for vehicle-to-vehicle, while the lane-keep support systems operate between 60-200km/h.

Finally, there are ISOFIX child-seat anchorages in the front passenger seat and two in the rear seats.

The Fiesta is covered by Ford’s five-year/unlimited kilometre warranty and you get free roadside assistance and state/territory auto club membership each year that you service your car at a dealer, for up to seven years.

The servicing schedule is every year or 15,000km, whichever comes first. There’s a four-year/60,000km capped-price servicing program, which costs $299 per service. 

Ford also offers a free service car loan that can be booked in ahead of your service.

What’s the GT like to own?

Mercedes-Benz offers a five-year/unlimited km warranty, with five years of roadside assistance. This is average for most mainstream and luxury brands, but superior to most sports-car makers like Porsche and Lamborghini.

Intervals are every 12 months or 20,000km, and while no capped-priced servicing is offered on the GT, pre-paid three-, four- or five-year service plans are available, ranging from $5165, $7700 and $8665 respectively.

Big performance demands big maintenance bills, it seems.