MG Im5 vs Subaru Solterra

What's the difference?

The MG IM5 Performance is fast, comfortable, quiet and super refined. Putting some minor spec and active safety niggles to one side, it offers the features, tech and price to match it with its well-credentialled and already popular mid-size EV sedan competitors. Is there room for one more? We think there should be.

The new Subaru Solterra AWD gets a lot right and is a well-rounded effort in showcasing an electric medium SUV that has passenger comfort, sharp external styling and is easy to drive.

Once you start comparing it to some rivals, it doesn’t always come out ahead of the pack but I still like it for what it is. My seven-year old thinks its fun and very comfortable. He enjoys the easy practicality of getting in and out without any assistance, too.

Playing spot the straight line on the outside of the MG IM5 is like an automotive design version of Where’s Wally? There aren’t many, in the midst of an unrelentingly curvaceous exterior treatment.

At close to five metres long and two metres wide the IM5 is appreciably longer (+211mm), a little wider (+27mm) and a bit taller (+33mm) than a Tesla Model 3. Think BMW 5 Series in terms of overall size.

And the soft-form shape is functional; the swoopy liftback boasting an ultra-slick 0.24 drag coefficient.

That said, I’m not convinced by the ‘Periscopic’ cameras informing the driver assistance systems from the front guards. They scream tacked-on afterthought. But a touch-only initial opening function for the flush door handles is cool and makes life easier.

The curves continue inside with soft-padded surfaces around the dash and doors, but the straight edge obviously came out for the 10.5-inch central media screen and vast 26.3-inch upper display. There are next to no buttons; even exterior mirror adjustment is directed from the screen to a multi-function steering wheel control.

System software (powered by a Qualcomm ‘Snapdragon’ chip) is lightning fast with a two-finger up and down swipe shortcut function on the central screen for ventilation and other functions.

The interior is light and bright thanks to the enormous panoramic sunroof. It’s been fine in cooler winter conditions during this test but it could be interesting to revisit in the heat of an Aussie summer

There are two interior colour schemes available - the ‘Highland Grey’ of our test car or ‘Dover Beige’ for those brave enough to live life with the threat of scuff marks on your shiny new car’s glamorous but vulnerably light interior.

The Solterra has its own vibe compared to the rest of the Subaru family and that’s most likely due to the Toyota partnering.

The tail-lights are sharply pronounced and the many pleats across the body panelling swing more towards Toyota styling than Subaru but it doesn't stick out like a sore thumb.

The heavy-use of black plastic mouldings on our test model's 'Smoked Carbon' paintwork looks okay but it wouldn't do any favours on a lighter colour.

The exterior on the whole looks bold and fun, and I like the fact that it's not pillowy in its shape as some of its rivals are. Those hunting for a sporty-looking EV will find something charming here.

The cabin is different from anything I’ve seen from Subaru so far. Some of it's fun, like the squared off steering wheel which looks rally car-ish but some of it’s odd, like the way the 7.0-inch digital instrument panel has been pushed back towards the windscreen in its own little nook.

The steering wheel can get in the way of viewing the graphics of the instrument panel and its placement looks disjointed from the rest of the dashboard elements.

The black and grey knit-looking cloth upholstery is warm and inviting and is found across the dashboard, seats and some door panels but there is enough cheap-looking black cloth throughout to detract from the general aesthetic. Had the Solterra not been pushing $70K, that wouldn't bother me, but it is, and it does.

The interior is pleasant but the exterior is definitely the highlight of the design.

There’s plenty of breathing room up front and in terms of storage one of the first things worth calling out are the long but relatively narrow door bins. No good for anything above unusually slender bottles, even if they’re lying down.

No conventional glove box in the dash, but there is a large lidded box (cooled and heated) between the seats that doubles as a centre armrest. It’s supplemented by a big stowage area underneath the flying buttress style centre console.  

There are two cupholders in the centre console as well as a wireless device charging pad in front of them with a vaguely phone-shaped oddments bin alongside it.  

Move to the rear and the IM5’s 75mm wheelbase advantage over the Tesla Model 3 is clear. Heaps of knee and headroom for me at 183cm sitting behind the driver’s seat set to my position. 

But… the seat sits low which pushes your knees up into the air to the point where my thighs are not contacting the seat cushion. Even though the rear seat reclines to a certain degree it’s a problem compounded by a chronic lack of room for your toes under the front seat. Awkward.

There are map pockets in the front seatbacks, modest bins in the doors and a fold-down centre armrest with two cupholders. Adjustable ventilation in the rear of the front centre console always makes life in the rear seat more pleasant.

The car also houses ‘Strong Magnets’ at various points around the cabin and boot, with a configurable adapter able to lock a phone or tablet into place for the entertainment of, in our case, back seaters. 

Speaking of devices for entertainment, there are two USB-C sockets and a 12-volt outlet in the front and another USB-C and 12V in the back, so charging isn’t an issue. 

The IM5 is a liftback so the boot aperture is generous and a capacity of 457 litres with the rear seats up is decent for a car of this size, although that’s less than the Tesla Model 3 (594L) which has an additional well under the floor. 

Still, enough room for the largest (124L) and smallest (36L) suitcases from the CarsGuide three-piece luggage set with some room to spare.

The power tailgate can be operated hands-free via the key or an always welcome under bumper kick function.

Volume expands to 1290 litres with the rear seats folded and there’s a modest 18-litre ‘frunk’ under the bonnet.

The bad news is a repair-inflator kit rather than a physical spare wheel, but the better news is the IM5 Performance can tow a 1500kg braked trailer (750kg unbraked).

The IM range also features the ‘MG iSmart’ app allowing remote control of various functions including charging, checking vehicle location and route planning. 

The practicality of the cabin is good for the class and the 212mm ground clearance means it's an easy car to get in and out of.

The extra-wide centre console makes the front look cramped but it isn't. And the the backseat is huge on space. Seriously decent headroom and legroom for the class and the flat floor means middle seaters will be comfortable, too.

Both the front and rear seats are well-cushioned and comfortable. You could easily do a long trip.

The driver's is the only powered seat (it also has lumbar support) but it's great that all but the middle seat feature a heat function for added comfort.

My seven-year old finds the back row comfortable because of its directional air vents and tall seating position providing a good view out of the wide window.

Individual storage is a bit low for the class but it does feature a handy shelf underneath the centre console which is large enough for a small handbag or the manual and logbook... because there is no glove box in this model!

To be fair, most are too small to be of real use outside of storing the 'ahem' manual and logbook.

Each door gets storage pockets and a skinny drink bottle holder and both rows get two cupholders. The rear gets map pockets too but that's it.

The boot features a tyre puncture repair kit, level loading space and 410L of boot capacity with all seats in use. The capacity is a bit lower than its rivals but has been adequate for my grocery run and the odd errand. It's great both Solterra models have a powered tailgate as standard.

The 12.3-inch touchscreen multimedia system looks good and is pulled directly from Toyota so the graphics and accessibility are on-point for everyday use.

You also get built-in satellite navigation which is always handy to have but you miss out on any over-the-air updates or a dedicated Subaru connected services app. 

The rest of the technology is solid with each row getting two USB-C ports and the front also featuring a USB-A socket and 12-volt outlet.

There are two variants for the Solterra range and both come with dual-motored electric powertrains. Our test example is the base model, priced from $69,990, before on-road costs.

Compared to its dual-motored rivals it’s almost as affordable as the Tesla Model Y Long Range priced from $69,900 MSRP, with the Toyota bZ4X AWD at $74,900 MSRP and the Kia EV6 GT-Line almost $20K more expensive at $87,590 MSRP.

However, its rivals sit at higher grade levels and some items on the Solterra AWD, like its cloth seats and manually adjustable front passenger seat, remind you it is still a ‘base’ model. 

That said, the Solterra AWD is well-specified for an entry model with standard features like heated front seats, a heated steering wheel, power-adjustable driver's seat, power-adjustable lumbar support (driver only) and even the rear outboard seats have a heat function.

The technology features a 12.3-inch touchscreen multimedia system, built-in satellite navigation, wireless Apple CarPlay and Android Auto, two fast USB-C ports in each row and a clear 360-degree camera system.

For practicality, it features a powered tailgate, tyre puncture repair kit and remote air-conditioning start (from the key fob) to set your ideal cabin climate before you get in.

The MG IM5 Performance is powered by an electric motor on each axle - the rear (372kW/500Nm) more powerful than the front (200kW/300Nm), for overall outputs of 572kW (that’s close to 770hp) and 802Nm of pulling power.

The official term for that amount of grunt is… a lot. And we’ll get to what it means on the road in the Driving section shortly.

The Solterra AWD has dual electric motors producing a combined 160kW for power and 337Nm of torque. It’s got enough grunt to be fun and zippy, even on the open road, but isn’t as powerful as some of its dual-motored rivals. 

For example, the Kia EV6 GT-Line produces 239kW/605Nm, which looks almost indecent compared to the Solterra's specs.

The MG IM5 Performance features an 800-volt electrical architecture which means the 100kWh NCM battery can accept a DC peak charge of close to 400kW.

Only snag is the highest you’ll currently find in Australia is 350kW. But even at that rate you’ll still be looking at a 30-80 per cent charge in just over 15 minutes. Maximum AC charge rate is 11kW.

Claimed range is 575km (WLTP) which is less than the Tesla Model 3 Dual Motor AWD at 629km.

Over a week of city, suburban and some freeway running we saw average energy use of 20.6kWh/100km which is on the high side for an EV of this size but maybe not for one with this kind of performance potential. 

The benefit of motors which aren't 'performance' grade means you win out eventually with energy consumption and its here the Solterra AWD shines.

The official combined cycle energy consumption figure is a low 14.1kWh/100km and I averaged 15.2kWh after a week of mostly urban driving.

The consumption is fantastic but the official driving range from the large 71.4kWh lithium-ion battery is only up to 414km (WLTP), which, again, is lower than most of its rivals by a good portion. I would have range anxiety on a longer journey.

The Solterra has a Type 2 CCS charging port which means you can benefit from faster DC charging speeds (up to 150kW on DC power).

On a 150kW DC system you can go from 0-80 per cent in just 30 minutes. 

On a 7.0kW AC power charger, you can go from 0-100 per cent in 9.5-hours and that drops to 6.5 hours on an 11kW system. Which isn’t as fast as it you might like but still makes it worthwhile plugging in while you're frequently the local shops.

First things first, the IM5 Performance is supercar fast. This 2.3-tonne five-seater blazes from 0-100km/h 3.2 seconds and with its dual motors combining to produce 572kW/802Nm, eye-widening performance always resides underneath your right foot.

But it’s not all about straight line speed. Ride comfort is excellent. Underpinned by an all-new platform, the IM5’s suspension is by double wishbones at the front and multi-links at the rear. But the key to its bump and rut smoothing ability is air suspension and ‘continuous control’ active damping.

Fold in double-glazing on the full-length glass roof and side windows, as well as active noise cancellation and you have a serene interior environment at any speed. Also worth noting the front seats are great; as grippy as they are comfortable.

Not only that, despite its relative heft, this mid-sizer steers well, too. Not the last word in road feel but it points accurately and the standard rear steering helps with prompt (but never jerky) cornering turn-in. Flick to ‘Sport’ mode and the IM5 is up for some enthusiastic running.

The rear wheels can turn up to 12 degrees in the opposite direction to the fronts at slow speed, which makes for a usefully tight 10-metre turning circle. But above that, at lesser angles, it adds extra stability and decisiveness in the way the car steers through even tight, twisty sections.

Rubber is top-shelf Pirelli P Zeros on 20-inch alloys (245/40 fr - 275/35 rr) and it grips hard, especially in the wet weather over much of the test period. Braking is solid, as it needs to be, with ventilated discs all around and four-piston callipers at the front. 

No adjustable regen braking but you can feel the ‘Cooperative Regenerative Brake System’ (CRBS) doing its thing when you lift off the accelerator. 

The physical rear view is modest thanks to the slope of the back window reducing its functional area for the driver to that of a 1950s VW Beetle. Even the interior rear-view mirror is tiny and folds up into a recess in the headliner if you’d prefer life without it.

But that’s where a rear camera view popping up on the upper screen display (accessed via the right-hand steering wheel click control) comes in handy. Side camera views are also available as is a 360-degree overhead view, which makes parking straightforward.

If you need more parking help there are various self-parking modes including a nifty ‘Curbside’ function that will realign the car hands-free if you’re parallel parked too far out from the kerb.

In a similar vein, a ‘Rainy Night’ mode projects left and right rear views onto the main screen using AI to enhance clarity and highlight pedestrians and cars.

Overall the ADAS (Advanced Driver Assistance Systems) are relatively unobtrusive but we found ourselves switching off the incessant overspeed chime that sounds for 10 seconds if you creep over the indicated speed limit, even when the system has misfired on the correct speed. For example, 40km/h school zones on a Sunday.

The over-zealous driver distraction warning also occasionally issued a visual and audible slap on the wrist when I was looking straight ahead. Tellingly, there’s a specific quick screen for turning both these functions off, but it kinda defeats the purpose of having them in the first place.

We also found the adaptive cruise control to be hesitant in multi-lane environments, reducing speed occasionally because the system seemingly believed a car was set to merge, when it wasn’t.

The Solterra underlines in bold everything you would expect from a Subaru. The power delivery is well balanced, it grips the road and the handling is comfortable.

Even when cornering there’s not a lot of passenger movement and the steering is on the right side of firm. Manoeuvring is nimble and fun thanks to an the 11.2-metre turning circle that also makes it easy to park.

The 360-degree camera system is top notch and you get great visibility out of the windows. Being only 4690mm in length and 1650mm tall even the smallest city carparks shouldn't daunt you.

The ride comfort is very good with suspension that absorbs the bumps well enough that they don’t bother you. There is a little road noise but not enough to annoy and overall the ride is refined.

The Solterra comes with great standard safety features like forward collision warning, blind-spot monitoring, driver attention alert, safe exit warning, LED DRLs, rear cross-traffic alert, lane-departure alert and keeping aid, adaptive cruise control, traffic sign recognition, front and rear parking sensors and a clear 360-degree camera system.

It also features a digital rearview mirror, which is handy when you have a carload of passengers or gear. While you're aware of all of the safety items none of them are intrusive, which is awesome.

The Solterra has seven airbags, including a front centre airbag and a maximum five-star ANCAP safety rating from testing done in 2022. Its twin, the Toyota bZ4X was the tested model.

The Solterra has AEB which is operational from 5.0-80km/h for pedestrian and cyclist detection and up to 180km/h for cars.

There are ISOFIX child-seat mounts on the rear outboard seats and three top-tether anchor points across the second row.

Two child seats will fit best and I had no trouble fitting my monster booster seat.

The MG IM5 Performance is covered by a seven-year/unlimited km warranty, which is a plus, but the catch is it’s conditional on authorised dealer servicing. Go elsewhere and the term drops to a more common five years/unlimited km. The drive battery is covered for eight years/160,000km, which is the norm in the Aussie market

Servicing is required every 12 months or 20,000km with charges averaging $586 per workshop visit for the first five years, which is on the high side for an EV, even at this price point, the average bumped up by a more than $1400 doozy at year four.

MG IM models are sold (with service available) through all of MG’s 100-plus dealerships across the country, so no concerns there.

The Solterra comes with a usual warranty term of five-years/unlimited km and the battery is covered by an eight-year or up to 160,000km warranty term.

However, one of the best things about the Solterra has to be the free servicing (yes, you read that right) for five years or up to 75,000km.

Servicing intervals are more in line with a fuel-based car at every 12 months or 15,000km. But, hey, free is free!