Mercedes-Benz AMG GT vs MG U9

What's the difference?

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.

I can’t give you a definitive verdict on the U9 based on our limited time behind the wheel. However, what I can say with certainty is MG is serious about making its first ute a success. The price alone demonstrates how motivated the brand is to win buyers over. Undercutting the likes of the Ranger and HiLux with a physically larger ute is a strong opening move from MG.

The clever features, spacious cabin and smart technology will also help to win over buyers, as will the choice of a conventional diesel engine. But none of that guarantees success. As the dominance of the Ford and Toyota demonstrates, ute buyers are loyal and drawn to the most popular options, so MG will need to fight hard for every sale to ensure the U9 isn't lost in the increasingly crowded ute market.

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.

While the fancy tailgate step and the Smart Hatch are the most obvious changes between the LDV and MG utes on the surface, arguably the biggest change is what’s underneath. MG has opted to buck the conventional leaf spring, live rear axle set-up and has instead opted for a more SUV-like independent, multi-link rear suspension.

This explains why such a big ute has a sub-one-tonne payload, but it speaks to MG’s aspirations to try and lure ‘urban’ ute buyers. There is no doubt a large group of ute owners who don’t go off-road regularly and instead use their vehicle as a family transporter.

To that end, opting for a more SUV-like suspension set-up should be beneficial to its on-road manners and unladen ride. Unfortunately, as mentioned earlier, we couldn’t test that because our drive was limited to unsealed roads. But it was enough for us to get an initial impression of how the U9 drives and the early signs are positive.

The engine sounds like a traditional ute, with the gruff diesel ‘chug’ and smooth pulling power. The towing test provided was well below the 3500kg maximum rating, only 1500kg, so naturally the U9 has little trouble pulling the horse float along.

As for the ride on the suspension, it's fairly well composed on a gravel road and offers no obvious signs of struggle on more challenging muddy trails and creek crossings. So there are promising signs that the U9 should be able to hold its own against the more established ute contenders.

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.

That SUV-like interior and the larger dimensions make for a very pleasant cabin with loads of space. We didn’t get too much time to experience the multimedia system, but the 12.3-inch touchscreen looks good and operates smoothly, while the inclusion of large physical buttons for the air-conditioning and audio system is a positive for those who value ease-of-use.

There’s a generous amount of room up front, but it’s the back that really impresses. Unlike the sometimes cramped back seats in a conventionally-sized dual-cab ute, the U9 has plenty of legroom and headroom for four or even five adults to fit in comfort.

There’s also plenty of small item storage, including a wireless charging pad (but only on the high-grades) and USB outlets just ahead of the gear selector.

As for the tray out the back, that is so important to ute buyers, it measures 1600mm by 1600mm at the top, but narrows to 1230mm between the wheel arches. Despite its big size, the payload is only rated at 870kg for the Explore, 835kg for the Explore X and just 770kg for the Explore Pro.

However, MG has introduced a party trick no-one else, not even LDV offers, in the tray. At the press of a button, the rear tailgate opens and then with another press a section of the tailgate drops down, revealing a step. While not the quickest way to climb into a tray, it might be the nicest and is definitely the easiest this reviewer has experienced locally.

The even more elaborate party trick the U9 offers is what MG calls a ‘Smart Hatch’. This allows for the rear glass to retract and the bottom of the cabin to recline into the interior, creating a direct connection between the tray and the cabin for especially long items. While MG is, rightfully, very proud and keen to promote the Smart Hatch, it must be noted it is only available as an option on the Explore Pro and costs $5500 (which is nearly 10 per cent of the total cost of the car) so you’ll want to really need the extra space.

By not having to worry about developing its own ute from scratch, MG was able to focus on its key selling strength - price. MG has a reputation for its aggressive pricing strategy in Australia, trying to win over buyers with the most affordable or best value products in any given market sector.

To that end, the MG U9 range begins at just $52,990, drive-away, for the U9 Explore, undercutting not only the Terron 9 Origin (from $53,674, drive-away), the Ford Ranger and Toyota HiLux dual-cab pick-up ranges. It's inline with the similarly-sized GWM Cannon Alpha (from $51,990 drive-away). 

For $52,990 the U9 Explore comes with 18-inch alloy wheels, side steps, painted tub liner, synthetic leather seats, keyless entry and ignition and a six-speaker stereo with digital radio and wireless Apple CarPlay/Android Auto.

Next up in the range is the U9 Explore X, which starts at $55,990, drive-away. For the extra money you get 19-inch alloys, a cargo slide rail with a hook in the tray, heated front seats, acoustic glass, vehicle app connectivity, voice command, a wireless smartphone charging pad, satellite navigation, Amazon music and the ability to receive over-the-air updates.

The flagship Explore Pro is priced from $60,990, drive-away, and has 20-inch alloy wheels, an eight-speaker JBL sound system, a panoramic sunroof, suede headlining, heated outboard rear seats and the clever tailgate step we’ll detail later.

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.

MG has plenty of hybrid knowledge, but has opted to keep it simple for the U9. It’s powered by a 2.5-litre, four-cylinder, turbo-diesel engine, which should be popular with the ute crowd.

It produces a solid, if unspectacular, 160kW and 520Nm, enough for it to offer a 3500kg maximum braked towing capacity, which is also something that should be popular with potential buyers.

The engine is paired with an eight-speed (torque-converter) automatic transmission and 'Super Select' 4WD system capable of sending drive to all four wheels.

Like so many new brands in the ute market, MG was keen to highlight that the transmission is built by ZF and the 4WD system is from BorgWarner, both brands with a long history in their respective areas.

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.

As all three variants are powered by the same engine and all return the same fuel economy. Rated at 7.9L/100km on the combined (urban/extra-urban) cycle.

As our test drive was limited to off-road only we can’t assess its real-world usage, so that will need to wait until we can spend extended time behind the wheel.

Notably, with an 80-litre fuel tank the U9 has a theoretical driving range of more than 1000km, which is great for anyone looking to take their ute on a long road trip.

In terms of safety, the U9 has all the usual features you should expect of any new car in 2025. This includes airbag protection for all occupants, plus active safety features including autonomous emergency braking, adaptive cruise control, lane keeping assist and a host of others.

That’s enough for it to achieve a maximum five-star Euro NCAP score and MG expects the same from ANCAP. However, it must be noted Euro NCAP crash tested the LDV e-Terron 9, the electric version of the ute, which obviously has no diesel engine in the front of the vehicle and instead a smaller electric motor and a storage space.

It also worth noting even on our limited, off-road only drive, the driver attention system seemed very sensitive, which suggests better calibration is needed. So we’ll reserve final judgement on the other systems until we can fully experience them, too.

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.

This is a crucial area for many ute buyers, so MG has tried to make itself as appealing as possible to discerning pick-up prospects.

However, the U9 is covered by MG’s seven year warranty, not the newer 10 year coverage from its passenger vehicles. And even then, that requires you to service the vehicle via an authorised MG dealer for the full seven years to apply.

However, this only applies to non-commercial use vehicles, so while tradies will be covered, fleet buyers are stuck with a five-year warranty.

Over the first five years, if you spend the $2395 capped price costs, you’ll get the extra two years of coverage. The first service is due after 10,000km, but the rest are at 12-months/15,000km.

MG has also worked on expanding its dealer and servicing network to respond to some growing pains and ensure owners aren’t burnt and are more likely to return for their next MG. There are currently 120 MG dealers across Australia with plans to gradually expand that footprint into regional areas following the launch of the U9.