MG’s new flagship SUV combines seven seats, a 62-mile electric range and a £34k price tag

MG’s product assault continues. In autumn 2020, the Chinese brand offered five models here; now it’s 11, seven of which are EVs and two, including this new S9, are plug-in hybrids (PHEVs). The oldest car in the range was refreshed just two years ago.

The S9 is the first with seven seats, an SUV just under 5m long and offered exclusively with the PHEV powertrain from the HS.

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DESIGN & STYLING

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The S9, a “pure D-segment car” according to MG, is 330mm longer than the HS and 1.97m wide across the body, so quite a sizeable thing. Big enough that there’s 330 litres of boot with all three rows of seats in place. (It’s not quite the longest MG: the IM5 electric saloon is a touch longer.)

It’s powered by a 140bhp 1.5-litre four-cylinder turbo petrol engine and a 228bhp electric motor, fed by a 24.7kWh battery. MG says it has a single-speed transmission, but it’s actually a bit more complex than that: the motor drives the wheels at a fixed ratio and the engine can too, but as often as not the engine will be working as a generator while the motor turns the wheels.

On electric power alone there’s a 62-mile range, while the fuel tank is 65 litres, which should combine to provide a generous overall range. It’s front-wheel-drive, sits on 20in alloy wheels, can be fitted with roof bars that have a 75kg capacity and has a 2000kg towing limit, MG’s biggest.

INTERIOR

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There are two trim levels, Comfort and Premium, but 90% of UK buyers will pick the Premium option, because you get even more kit and a better residual value, so the overall cost of ownership will be barely any different.

The Comfort model has a sunroof, three-zone climate control, an eight-way adjustable driver’s seat and a six-way adjustable front passenger seat. The Premium then gets heated, ventilated and massaging front seats with electric lumbar support, a 12-speaker Bose stereo and wireless phone charging. Both versions have vehicle-to-load capability.

Perceived quality is pretty good overall, albeit a bit of a mix, as you might expect for a car giving this much space at this price. The door tops are meant to look stitched but I don’t think are, although there is softer, stitched leatherette elsewhere. The metallic plastic looks but doesn’t feel naturally metal, but overall fit and finish are good.

There’s even a smattering of real buttons, including a roller to lower the headlight beam (a very underrated feature for me) among a dash area that has big stowage space too. The gearlever and drive mode selector are mounted high and the steering wheel buttons and knobs are thankfully all physical.

There’s a big touchscreen too, of course. It would be better if some of its features, particularly for the heating/ventilation, were on the switch panel (do you really turn the HVAC off more often than you change the temperature?), but it’s clear and mostly logical. There’s even a function that allows you to customise ADAS activation, so switching out the driver attention monitoring, lane keeping assistance or speed limit sign detection (all of which work inadequately) are two button pushes away. You can select this setting only while stationary, though, so do remember before you set off.

The S9 is roomy in the front, likewise in the middle row, which is split 60/40, with both sides able to slide independently. Scooching them forwards makes for generous leg room in the third row. The chairs are mounted low to the floor, so you sit with your knees bent, but there is reasonable head room. 

There are even cupholders, lights and air vents for the rearmost passengers, there are big and small USB ports around and a 12v socket, and it doesn’t feel too claustrophobic, owing to glass that extends to the rear-set D-pillar. The rearmost and middle row can be folded flat, too, in which form you get up to 2093 litres of boot space (there’s 1026 litres with just the rearmost pair folded).

ENGINES & PERFORMANCE

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It’s perhaps surprising to note how much slower the S9 is to accelerate than the MG HS, taking a leisurely 9.6sec to sprint from 0-62mph, as compared with 6.8sec.

Still, in normal traffic it never feels short of urge, owing to the fact that the electric motor is the more powerful of the two sources of movement, and it wants to make the most of it, allowing it to torque-fill and meaning that the engine – a distant thrum – is relatively unobtrusive. 

If you do work it up steep hills, it almost sounds like a CVT car, whirring away at revs, and its response is partially removed from the experience. You’re just aware that the oomph is only partially related to the engine’s thrum, like in the Toyota Prius.

There is creep from step-off and a few different modes of retardation. Brake pedal feel could be better, mind, as response seems to correspond to pedal distance rather than a mix of distance and resistance, as would feel more natural. 

RIDE & HANDLING

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As with the performance, the S9’s dynamic behaviour falls easily into the ‘mostly inoffensive’ category. 

It rides well enough, with sufficient urban absorbency and a steady high-speed cruise, and the levels of wind and road noise are relatively low. The quick response of the powertrain can give it traction issues from rest in the wet, even if you’re not pressing on. 

It handles with a degree of squidge. It’s at least predictable and stable, and I wonder if the steering ratio ramps up once you get to about a quarter turn of lock, because on some back roads the S9 felt like it was turning quite willingly, somewhere around its middle, more so than with less lock applied. This doesn’t equate to any extra engagement, you understand. It’s an easy-going old barge.

MPG & RUNNING COSTS

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As I write, MG has quoted an 18g/km CO2 figure for the S9 and there’s that useful 62-mile electric-only range, but fuel consumption is yet to be confirmed (around 350mpg according to the WLTP drive cycle is most likely).

As is the way with PHEVs, how you use them will dictate how much fuel you use. Plug in nightly and do short journeys and you will never burn a drop of petrol; if you’re unwilling or unable to, you have a 1.5-litre series hybrid pulling a lot of weight

VERDICT

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There are some new cars that heads wherever they go, as bystanders mouth ‘look, that’s the new…’ as you pass. The S9 is not one of those cars. It slips onto Britain’s roads as anonymously and inoffensively as it’s likely to slip into your life. It’s spacious, well-appointed, has respectable levels of feel and fit and is incredibly competitively priced. As MG says, this is five-seat series-hybrid money elsewhere. 

As enthusiasts, we would tend to point you towards something a little more engaging, but this area of the market isn’t brimming with excitement. Increasingly the opposite, as MG finds that new Chinese entrants are targeting its prices in precisely the manner it has been targeting European brands.

Matt Prior

Matt Prior
Title: Editor-at-large

Matt is Autocar’s lead features writer and presenter, is the main face of Autocar’s YouTube channel, presents the My Week In Cars podcast and has written his weekly column, Tester’s Notes, since 2013.

Matt is an automotive engineer who has been writing and talking about cars since 1997. He joined Autocar in 2005 as deputy road test editor, prior to which he was road test editor and world rally editor for Channel 4’s automotive website, 4Car. 

Into all things engineering and automotive from any era, Matt is as comfortable regularly contributing to sibling titles Move Electric and Classic & Sports Car as he is writing for Autocar. He has a racing licence, and some malfunctioning classic cars and motorbikes.