Mazda CX-70 vs MG MG QS

What's the difference?

For mine, the CX-70 is the pick of Mazda's premium SUV range, and if you can survive without a third row of seats, it's significantly cheaper than its CX-90 twin, too.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

What it lacks in driving panache it does make up for in terms of space and equipments, and there really is room for seven decent-sized humans on board. Combine that with a decade of warranty coverage, and the MG QS will no doubt be appearing on family shortlists.

Yes, the Mazda premium SUV range can look a little same-same, but Mazda insists there are critical differences.

That said, if you can immediately spot the difference between the CX-70 and CX-90 without taking a peek inside, you're doing better than me, given it is the same exact dimensions as Mazda's three-row flagship.

Sure, Mazda talks about things like this design being a “passion pursuer” that serves up "dignified performance” – all of which sounds utterly ridiculous – but the less marketing-speak version is that it looks like a shapely large SUV that ditches the boxy dimensions of a proper 4WD for a more sleek and swooping profile.

Inside, it's a plush and premium-feeling space, with lovely cabin materials, plenty of tech, and plenty of space.

You’re not going to miss the MG on the road, are you? For one, it looks pretty big, and pretty athletic, plus it’s got that bold front-end and grille design that, if I’m honest, I can’t tell if I like, or if it’s over the top. 

Elsewhere, though, it’s more traditional SUV styling, though there is some nice and gentle detailing in the body that makes it look less big, broad, and boring, and the slightly nose-forward design gives the QS something of an athletic stance.

Inside, it’s really quite nice. The twin screens look fantastic – and the subtle curve linking the two looks properly elegant – and there’s some lovely detailing in the through the dash panels, too, which also helps to break up the fact that there is simply a lot of dash here.

As always, I love the row of switches below the screen that act as shortcuts to the functions you need, when you need them, without having to rely on the screen all the time. 

But I'd encourage you to have a good squeeze of all the materials used. Some look like stitched leather, but are actually harder plastics in disguise.

The CX-70 measures a substantial 5120mm long, 1994mm wide, and 1745mm tall, and it rides on a 3120mm wheelbase.

It will tow 2.5 tonnes no matter which engine you choose, and the expansive boot will swallow between 589 litres and 2015 litres, depending on how you configure the backseat.

All of that space translates to a hugely airy backseat experience, with the second row able to be fixed in a position that either prioritises leg room or boot space.

With the former, you've got tons of space in the second row. I'm 175cm, and my knee and leg room was ample, with only the intrusive tunnel that runs down the middle-centre of the cabin eating into leg room for the middle passenger.

There are also air vents and temp controls, twin USB charge ports, seat heating in the window seats and swathes of very nice materials.

The boot is massive, too. I can't even reach the back of the rear seats when I lean into it, and Mazda says it will swallow smaller surfboard or SUPs without needing to resort to roof racks.

Under-floor storage adds a bit more security for precious items, too.

The MG QS is a smidge under five-metres long, just over 1.9m wide and just under 1.8.m high, which puts it right in the seven-seat SUV ballpark.

That pays dividends in the backseat. I’m 175cm tall, and I had heaps of room to spread out, and I don’t only have my own air vents, but I have my own temperature controls, too.

It’s a big and airy space, and I’d have no problem spending some serious time here on a longer road trip.

But the big question is, what do those dimensions mean for third-row riders, and does it live up to its promise of being a true seven-seater?

Well, yes and no. The fact that the middle row is on rails helps massively, because you can slide it forwards to maximise leg room for backseat riders, and the one-touch entry (which folds the middle row up and forwards) makes actually climbing back there pretty simple, too.

But... it's still a space in which I wouldn't want to spend too much time. Its big enough for shorter trips, but it's still best for the smaller kids in the family.

Now, as is often the case with three-row cars, how much boot space you get very much depends on how many people you have onboard. With all three rows in place, you get a miserly 203L, fold the third row and you get 517L, drop both rows and you get 1052L.

You get introductory national drive-away pricing for the two-grade MG QS range, with the Excite yours for $46,990, and the Essence we’re testing sets you back $50,990 on the road.

In typical MG fashion, neither model is wanting for much in the spec department, but our Essence gets the lot and the kitchen sink.

Outside, there are 21-inch alloys, LED lighting with fog lights, a powered tailgate and a powered sunroof. Inside, there are leather seats which are heated and ventilated up front, tri-zone climate control and ambient interior lighting.

Tech is handled by twin 12.3-inch screens with wireless Apple CarPlay and Android Auto. There’s wireless charging, too, and a 12-speaker Bose stereo.

The top-spec model also gets all-wheel drive, adaptive suspension and six drive modes — Normal, Snow, Off-Road, Sport, Custom and Eco.

There are five exterior colours available on the QS, including Oxford White, Black Pearl, Camden Grey, Regency Green and Cashmere Silver.

You can have one of two engines in the CX-70, with the cheapest being a 3.3-litre, six-cylinder turbo-petrol, producing 254kW and 500Nm. There's also a 3.3-litre, six-cylinder turbo-diesel, making 187kW and 550Nm. Both are equipped with a 48-volt mild hybrid system to marginally reduce fuel use.

All models are AWD, and pair with an eight-speed automatic transmission.

Under this hood is a 2.0-litre turbocharged petrol four-cylinder engine, which produces 153kW and 360Nm. In this all-wheel-drive Essence, that power is channelled through a nine-speed automatic and sent to all four wheels.

I don’t have a zero to 100km/h time for this two-tonne-plus beast, but suffice it to say it won’t knock your hat off. I’m guesstimating just under 10 seconds.

Petrol-powered cars will sip 8.1L/100km on the combined cycle, while the diesel drops that to 5.4 litres.

Both models get a 74-litre tank, meaning a theoretical driving range of around 900kms in the petrol, and almost 1400kms in the diesel.

Now MG reckons you will see 8.8L/100km on the combined cycle, which would give you a theoretical driving range of around 738km from its 65-litre fuel tank. For the record, we saw more like 11 litres.

That tank, by the way, demands 95RON fuel, so you won’t be troubling the cheapest pump at your local service station.

Interestingly, the CX-70 has been tagged as the expected smallest seller of Mazda's premium SUV range, but I reckon it just might be the pick of the bunch.

Every one of the CX-0 models (60, 70, 80 and 90) all get slightly different suspension tunes, and while you can find harsh edges in the other models, the CX-70 feels utterly composed and refined, at least on the smooth-ish roads of our launch test route.

Perhaps most surprising, though, is the CX-70's ability to hold its own on a properly twisting road. We expected lots of weight transfer and the high-pitched sounds of tyres screaming out in pain, but instead found Mazda's massive SUV served up grip, composure, and very little in the way of sea-swell-style body roll.

The two big six-cylinder engines also feel perfectly suited to a vehicle in this space. There's tons of power whenever you need it, and solid levels of refinement in terms of engine noise or diesel rattles.

For mine, the petrol engine is the pick though, feeing just a little smoother than the diesel option. The latter can feel a bit jerky at slower speeds, whether that's the power delivery or the gearbox, and it doesn't seem to happen with the petrol engine.

The biggest caveat, though, is that we haven't driven the CX-70 in its natural environment, the city and suburbs, so while it largely shone on flowing country roads, how it performs on roads like the ones near your place remains a bit of a mystery.

It all comes down to what you're looking for in your large SUV. Is it a vehicle that – against all odds – manages to somehow stir your emotions from behind the wheel, whether you're flying solo or you're riding with seven on board? Well, the MG QS won't do that.

But if you're looking for something big, comfortable, nicely trimmed and with just about every feature you can think of, then the MG QS ticks those boxes and then some.

But let's start with the not so good. The steering in the MG QS is super, super light, leaving it feeling largely disconnected from what's happening beneath the tyres, and giving the drive experience a weird and artificial vibe.

Now, it must be said that some drivers like that. A big car with light steering makes manoeuvrability easy in car parks and the like. But I don't. It makes me feel uninvolved in the drive experience.

The QS is equipped with Sport mode that does add heft to the steering, but which also appears to make the gearbox way to eager to shift down and hold a lower gear, adding a harshness to the drive.

It's also not a big engine, and this is a big car, and so there's a bit of delay when you first plant your foot as the engine figures out its next move, and you're always aware of the engine working fairly hard to get the QS moving along – though MG has done a good job of deadening much of that sound before it enters the cabin.

But if that's the not-so-good, there are still plenty of ticks in the MG's plus column. It's a largely smooth-riding, sweet-shifting proposition, the QS, and the space in all three rows is impressive, especially when the sliding second row is utilised to maximise the space where you need it.

The MG QS hasn’t yet been crash-tested by ANCAP, but all the expected safety kit is on board, including seven airbags, AEB, rear cross-traffic alert, adaptive cruise control, blind-spot monitoring, lane-keep assist and lane departure warning.

But be warned, it can bing and bong and random intervals. If it thinks you’re speeding, or that you’re not paying attention, and it is very, very annoying. Learn how to switch off the speed limit recognition and driver attention alert, and fast.

Servicing is not particularly cheap in the CX-70, and the service intervals, at least in the diesel, feel a little short, too.

Buy that one, and you’ll be visiting the dealership every 12 months or 10,000kms, and the first five years of ownership will cost you $3298.

Petrol cars require servicing every 12 months or 15,000kms, and five years will set you back $3436.

The CX-70 is also covered by Mazda's five-year, unlimited-kilometre warranty.

It’s a tale of goods and bads in the QS ownership world. The good is a near market-leading 10-year/250,000km warranty (so long as you regularly visit an authorised service centre), and solid service intervals of 12 months or 15,000km, whichever comes first.

The bad is eye-watering service costs – including a whopping $2920 dollar service at the six-year/90,000km mark.

All up, seven years/105,00km of servicing will cost you $6336 in the 2WD, or $6962 in our AWD – the latter averaging out at close to $1000 per year.