MG ZS vs Audi RS6

What's the difference?

The MG ZS Essence with the 1.5-litre petrol engine has many strengths - price and value for money, practicality and space, good looks… and the only area where it really struggles to match its rivals is its underpowered engine. 

The good news is the Essence also comes with a turbo engine and while this isn’t a race car by any means, turbocharging is a way to add the oomph needed in a car this size. 

Stepping up to the MG ZS Essence Turbo costs an extra $2000, but if you can make the budget stretch you’ll have the complete package of value, looks, practicality, safety and much better performance for more enjoyable driving.

You’ll notice a number out of 10 on this review, you should ignore it.

Not only is it irrelevant because you can’t buy one, but the RS6 Avant GT isn’t a ‘brain’ car, it’s a ‘heart’ car. As much as a five-seat wagon can be, anyway.

Whether you think it’s overkill, overpriced, or overhyped, the GT is a celebration of a car that’s become such an icon for petrolheads. It’s also probably a marker for the end of an era, because we don’t see many V8 family cars getting about anymore.

Well done to Audi, the accounting team in particular, and if anyone who owns an Avant GT is willing to let me have another drive, my in-box is open. 

Or I’ll just keep an eye out.

The ZS's good looks is another strength.

The new-gen ZS arrived in Australia late in 2024 and this petrol version landed in February 2025. The styling looks more expensive and premium than its price tag would suggest. The sleek nose, the refined tail-lights, a pleasing profile all make for a good looking small SUV.

There are many interesting elements in the design - the grille and its aggressively looking flanking 'air intakes', the crease through the door panels, the little fin that meets the tail-light.

Squint and it looks like a mini Ford Territory. Sort of…

The cabin of the ZS Essence is equally refined with a modern design and soft touchpoints throughout. It’s a minimalist and spacious place free from button clutter.

The ZS is 4430mm long, 1818mm wide and 1635mm high. Ground clearance is 161mm, in case you’ve been lying in bed wondering.

“It looks like a toy car you’d get in a Kinder Surprise” was the first comment from my housemate upon seeing the $400K collector's item on wheels.

Harsh, but to anyone unfamiliar with the Audi 90 quattro IMSA GTO racer, there’s arguably too much going on with the RS6 Avant GT.

The red, grey and black decals, the chunky white 22-inch wheels, the flared and vented front fenders and the wing over the rear window… all of it is a lot to take in, but it’s very faithful to the IMSA car.

As pictured, the 90 quattro IMSA has the red around the bottom lip of the car, on the bonnet, and even its rear wind, the same as the red on the rear of the Avant GT.

Some of the black at the front of the car, where the bonnet and fenders are, is just exposed carbon-fibre rather than a black decal.

Short of the sponsors and racing numbers, the Avant GT does a fabulous job of paying homage to the 1989 race car. It just means you’re going to be the centre of attention anywhere you drive. Or park.

On that note, an alternative paint and graphic scheme in 'Mythos Black' (this car is 'Arkona White') was available to customers and is decidedly more ‘under the radar’. You have to wonder, though, if you opted for the subtle version of a car that pays homage to a fire-breathing IMSA car, would you feel like you took the coward's option?

Besides, you’re either keeping this car in some kind of temperature-controlled bubble, or (hopefully) spending most of your time around it in the driver’s seat. From there, you don’t have to grapple with the question of garishness.

The interior is, while elevated past standard RS6 vibes, a lot more subtle. Dark materials of microfibre, carbon, leather and the smudge-prone piano black (an Audi favourite) are joined by a relatively restrained serving of red in the contrast stitching and seatbelts.

Practicality is a big strength, too, with a proximity key that’ll unlock the car when you touch the door handle, and a cabin with good legroom and headroom even for me at 189cm tall.

There's also a wonderfully simple charging pad for your phone - it's a large area on the centre console which works well in terms of connection but also in terms of wasy access. Many rivals will hide phone chargers away is small crevices that make them hard to extract or even pop in.

You'll find four USB ports, too plus a 12V charger, too.

Clever storage like a shelf built into the dash for loose objects, four cupholders and big door pockets are also on hand.

The boot is also a decent size for a small SUV at 443 litres which is bigger than many rivals, including the Subaru Crosstrek.

You’ve bought a $400K collectible sports car capable of effortlessly deleting kilometres of highway with your family and enough luggage for a week. Usually a special edition driver's car at this price point is doing well if it has a place to put a phone and a water bottle, let alone phones and water bottles for four people - five if you really need.

Yes, in the performance car world, the Audi RS6 Avant has long been king of the convenience game and the GT holds onto that. 

The seating position and ergonomics remains comfortable, the driver’s seat being manually adjustable means it can sit even lower, there’s decent storage in the door cards, cupholders are able to be hidden, the phone charger is under the armrest, there’s a spot for small items like keys, change or glasses and the rear seats have mostly the same alongside their own individual climate controls and heated seats.

Behind those, a 548-litre boot puts most performance cars to shame, but its 1658L space when the rear seats are folded down is unbelievable for something that you’d want to take to a race circuit.

I’ve been told I’m not allowed to swear in CarsGuide reviews, so add your own expletive when I say, at $399,000, before on-road costs, the RS6 GT is expensive.

A ‘standard’ Audi RS6 Avant Performance costs $252,600, so you would really, really hope that warm feeling you get from owning one of only 22 GTs in the country is worth around $146,400. It’s very hard to imagine the physical changes to the car amount to that much money.

Of course, there’s plenty of kit in the RS6, anyway. But unique to the Avant GT is a carbon bonnet, carbon wing mirrors and carbon front fenders, a restyled spoiler, tailgate, and rear diffuser, 22-inch Audi Sport six-arm ‘Avus’-inspired alloy wheels (in white or black), RS ceramic brakes and black badging.

Inside, there are RS front bucket seats trimmed in leather, synthetic suede and carbon, contrast stitching in red, red seatbelts, black synthetic leather along the dashboard with open-pore carbon, rear window sunshades and a Bang & Olufsen 3D sound system from the 'Sensory Package' as standard.

There’s also ‘RS6 GT’ scuff plates, floor mats, puddle lighting and the individual number for each of the 660 cars on the centre console. 

There’s also manually adjustable coil-over suspension and a GT-specifically-tuned quattro sport differential.

It’s cool, but is it an extra $146K cool?

For the price, you’re almost in Ferrari territory, or you’re ticking some options boxes on your Porsche 911 Carrera T. Suppose neither of those can comfortably take a family of four on a holiday to the snow and even feel safe driving on icy roads, though.

It does happen to be about the same price as the Mercedes-AMG GT63 S 4 Door, though whether that looks as good as the RS6 is debatable.

Okay, we've listed a lot of strengths for the MG ZS but the engine isn’t one of them. The 1.5-litre four-cylinder petrol engine makes 81kW and 140Nm.

Really, power needs to be at least 100kW and torque closer to 200Nm in something weighing 1330kg otherwise acceleration is going to feel woeful - which it is.

Seriously, the first time I tried to overtake I looked down to see if the handbrake was still on.

Not helping performance is a CVT (Continuously Variable Transmission) which, while good for fuel economy, seems to have trouble getting power to the road effectively.

Audi’s venerable 4.0-litre, twin-turbo V8 engine remains at the heart of the RS6, though in the GT there’s no more power than the RS6 Avant Performance.

That means 463kW of power and 850Nm of torque delivered to all four wheels via an eight-speed torque converter automatic and Audi’s ‘quattro’ all-wheel drive system, making the RS6 Avant GT capable of a 3.3-second sprint to 100km/h, according to Audi. Top speed is a blistering 305km/h.

All this in a car I took to Coles.

Official fuel consumption for the combined (urban/extra-urban) cycle is 6.7L/100km, which isn’t outstanding, especially compared to the hybrid version which can get 4.7L/100km.

Our own testing after city driving and motorways saw 7.9L/100km. Not the most efficient engine in the range, so if it’s saving petrol you want then go for the hybrid, or better still, the electric version of the ZS.

Do you care about this section of the review if you’ve bought one? Surely not. 

Anyway, Audi claims 11.8L/100km in terms of fuel consumption and you’d better believe it’s 98 RON minimum. 

It’s got a 72-litre fuel tank, which was depleted rather rapidly on test. While driving conditions weren’t ‘fair’ in terms of the test given the content demands of a short-term loan, there’s probably a realistic figure somewhere between the claim and the 17.9L/100km I achieved over a few days.

The lack of oomph from the 1.5-litre naturally aspirated four-cylinder engine affects the driving experience of the ZS. This lack of accleration is hampered not just by the low outputs of the engine but also by the transmission, which is a CVT and these don't favour getting power to the road as effectively as torque convertor transmissions.

Handling is good for this class, with the ZS feeling stable under most conditions. Steering is excellent, with a nice weight and accuracy to it.

And while the ZS is no prestige car, the ride is comfortable, composed and better than many small SUVs at this price point.

Other pluses include its smaller size which makes it easy to manoeuvre in city traffic and park in tight spaces.

The final driving score however is dragged down by the engine and transmission which fail to provide the acceleration needed to easily overtake, merge or move quickly when needed at stop signs or out of car spaces on busy roads.

There’s something unfortunate about how good the Audi RS6 Avant GT is from behind the wheel. That’s knowing how few people will properly get to enjoy it.

Not just because only 660 were built, but also because the majority of those 660 owners will be too worried about how much they’ve just spent on an automotive rarity to properly take it for a burn on a road, or even a track.

The RS6 was always an icon of Germany's penchant for subtle-looking cars that just happen to be capable of embarrassing much more brash vehicles, but the GT does away with the pretence and sharpens its teeth a little.

The specifically tuned rear differential makes for a more rear-biased driving experience in Dynamic mode, which means more agile cornering and a more natural balance compared to the way the RS6 sometimes feels - like a family wagon.

Its rival, the BMW M5 Touring, can go full rear-drive, but the Audi doesn’t need that as an option. It feels more capable and composed; ready to obey commands without fuss. A set of Continental SportContact 7 tyres (285/30) help there on the grip front.

The suspension underneath, adjustable coil-overs with three settings, is unique to the GT and lowers the ride height by 10 millimeters. It’s stiffer, 30 per cent at the front and 80 at the rear, and you notice it.

There’s more control and much less body roll, but the trade-off is the RS6 Avant GT is a little less comfortable on Australia’s particularly rough roads. Its 22-inch wheels don’t help.

It’s not, however, crashy or rattly. The suspension still does a fine job of stopping the driver being jostled around, but there’s a decidedly firmer response to the surface underneath. Again, still very composed.

With the new suspension, steering the GT feels easier than memory would suggest and the baseline was already good. There’s no unnecessary weight, but there’s still decent feedback from the front wheels and accuracy is bang-on.

Throttle adjustment in the corners, too, is easier with the rear differential, and it means anyone who still had reservations about Audi and understeer can be proven wrong.

The drivetrain remains unchanged from the Performance, which is a good thing. The effortless acceleration, even in the more aggressive 'Dynamic' setting with the transmission set to 'Sport' is smooth but seemingly unending.

Fortunately, the 4.0-litre V8 under the carbon bonnet sounds delightfully burbly, so getting to the speed limit or overtaking is a little treat every time. While the steering wheel paddles are there if you really need to drive in anger, the eight-speed is fine left to its own devices.

A 2.0-tonne family wagon with a V8 up front, easy communicative steering, and sporty suspension that settles well over bumps but allows enthusiastic corner attacks?

The RS6 Avant GT is in limited company.

There’s no current rating from ANCAP for the A6 in general, let alone this specific RS6, but there’s a decent suite of safety equipment and tech to keep you worry-free in the GT.

Eight airbags and more than 30 driver assistance systems from the RS6 are of course present in the GT, including adaptive cruise control, lane-keep and warning, emergency brake assist and cross-traffic alert.

Audi’s also got surround view cameras for parking, which also includes warnings for approaching vehicles or objects, plus there are preemptive measures the car can take in an impact like tightening the seatbelts or braking to avoid a second collision.

The second row also has three top tethers and ISOFIX anchor points on the outboard seats for mounting child seats. 

Ownership costs are a strength, too. The MG ZS is covered by a 10-year/250,000km warranty.

MG’s ‘Precise Price’ service plan locks in the cost of servicing with 12-month/15,000km intervals and a cost of about $1200 over five years.

Audi’s five-year/unlimited kilometre warranty is below industry par, though most premium brands are in the same boat.

Twelve years of bodywork warranty against corrosion is also included, as is a five-year run of free Audi roadside assistance.

Five-year service plans can be purchased, or customers can buy back-to-back two-year extensions for the warranty, servicing and roadside assistance.