MG Im5 vs Subaru Impreza

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 2024 Impreza delivers on all the key things which have made the nameplate so well regarded for the last 30-odd years.

The issue is, buyer expectations have moved on. Hatchbacks need to do more than ever to compete with small SUVs, and with today’s fuel prices it’s far more valuable to offer hybrid rather than all-wheel drive.

This is why, despite the sixth-generation Impreza being a tidy high-tech offering with an admirable commitment to safety, I think it will ultimately continue to shrink its market share. This Impreza really is one for the fans.

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.

Over the years the Impreza has changed in its design and intention so much.

Once known primarily for its sporty sedan variants, today’s Impreza is a far more contemporary hatchback, forgoing the once wagon-like shape for something with the traditional bubble silhouette to align with its rivals.

For better or worse, it also syncs up with the rest of Subaru’s range, with the brand’s current design language on full show, but it also barely evolves from the previous-generation version from the outside.

It trades the chunky square light fittings from the previous car for something a bit more refined this time around, with a similar look and feel to the WRX and Outback.

Inside also gets a similar fit-out to other Subarus in the range, complete with a raised centre console, shapely dash, and the same huge screen from the Crosstrek and Outback which dominates the space and helps simplify things compared to the busy interior and multiple screens of the previous car.

It’s a cosy space with chunky comfortable seats and the signature bumper car steering wheel is a stand-out bit of Subaru design.

Even the base car with its plastic trimmed wheel and basic cloth trims in the door is basic in an almost refreshing way, but unlike some rivals manages to be comfortable, too, thanks to soft trims for your elbows in the doors.

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. 

Living up to the adventure-ready Subaru promise, the Impreza's interior is quite functional.

Even though many controls have moved to the big central screen, there are individual buttons for temperature adjustment and a permanent touch function for fan speed on the lower third of the screen.

It would be nice to see a full set of physical buttons for climate functions, but this seems like a decent compromise.

Elsewhere there are large bottle holders in each door with a small accompanying pocket, two more rigid bottle holders in the centre console, a small tray behind them, and a huge armrest console box.

Under the multimedia screen there is a bay with a wireless phone charger, but like the Crosstrek, it is finished in a hard plastic material, which means your phone will easy slide around and out of the charging area in the corners, which seems like an oversight.

Adjustability is great, even in the base car, with flexible seats and a wide range of movement for the wheel, letting you easily find a suitable seating position. Width in the cabin is okay, but headroom is excellent.

The back seat offers a solid amount of room for myself behind my own seating position, at 182cm tall, but the middle position is no good for an adult thanks to the presence of a large raise in the floor to allow for the all-wheel drive system underneath.

Amenities for rear passengers are only okay in the base car, with a large bottle holder in the door and a further two in a drop-down centre armrest. There are no adjustable rear air vents or USB power outlets in the L, but outlets are added in the R and S.

Boot space is on the small side, with only 291 litres (VDA) on offer. The high floor means a limited amount of space with the luggage cover in place, although I was surprised to find we could fit the full three-piece CarsGuide luggage set once it was removed, so long as you’re okay not being able to see out the rear window.

Under the floor, the Impreza sports a space-saver spare wheel - a must-have for long-distance regional travellers.

Now in sixth-generation form, the 2024 Impreza range has been trimmed down to just one hatchback bodystyle and three trim levels - the base L, mid-spec R, and top-spec S.

True to Subaru form these variants are all priced quite close together, and the base L comes with pretty much all the kit you’ll need, with the R and S grades adding mainly luxuries to the equipment list.

Now starting from $31,490, before on-road costs, the Impreza is not as affordable as the previous-generation version, and while it manages to pack a relatively high level of standard equipment, some of its key rivals are a bit cheaper in a segment where every dollar matters.

For example, you can get into a hybrid version of Toyota’s Corolla (Ascent Sport Hybrid - $32,110) for similar money to the entry level 2.0L, the Kia Cerato can be had for under $30,000 (Cerato S Auto - $27,060) while the outgoing Hyundai i30 is significantly cheaper in its most basic trim level (i30 Auto - $26,000).

What might make you think twice is the Subaru’s standard all-wheel drive, where all of its rivals are front-wheel drive, but in an environment where fuel costs are high, I can understand why people would prefer to see a hybrid version instead.

Unlike the Impreza’s Crosstrek small SUV relation, there’s no ‘e-Boxer’ hybrid variant.

Still, standard equipment is high even on the base 2.0L. Included are 17-inch alloy wheels, LED headlights, a massive 11.6-inch multimedia touchscreen with wireless Apple CarPlay and Android Auto and you even get a matching wireless phone charger.

Elsewhere the base car gets cloth seats with manual adjustment, a plastic steering wheel, analogue instrument cluster with a small digital display, and importantly, the majority of Subaru’s very good active safety equipment is standard.

So, what do you get for stepping up the range? At $34,990, the 2.0R adds premium cloth seat trim, additional charging ports in the rear, eight-way power adjust for the driver, heated front seats, a leather steering wheel and shifter, steering responsive LED headlights, and LED fog lights.

At the top of the range, the $37,990 2.0S adds a 10-speaker audio system, built-in sat-nav, an electric sunroof, and synthetic leather seat trim.

The cabin tech, safety, and standard all-wheel drive are the real draws, but you have to want them. The Impreza isn’t the stellar value buy it once was.

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 Impreza is equipped with just one engine and transmission for its sixth-generation, a 2.0-litre (FB20) four-cylinder horizontally-opposed ‘boxer’ engine mated to a continuously variable automatic transmission, driving all four wheels via the brand’s signature ‘symmetrical’ permanent all-wheel drive system.

The FB series is a development of the successful EJ series engines which lasted from 1989-2021. This more recent engine has new material science, heads, and seals which have helped the brand push service intervals out to 12 months rather than six, and should address issues which the older engines developed over time.

Power is on-par, but not a stand-out in the segment, with peak outputs of 115kW/196Nm.

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. 

One issue with having a non-turbo, non-hybrid 2.0-litre engine with all-wheel drive is relatively high fuel consumption. The Impreza has an official combined cycle fuel consumption figure of 7.5L/100km which is less than impressive in today’s market of hybrids and downsized turbocharged engines.

In my week of mostly stop-start city driving, the test example drank 11.1L/100km, which is disappointing.

Mercifully, it is capable of running on 91RON unleaded. For those who care, the CO2 output is officially 170g/km which is well above the 140g/km it would need to be at to avoid the wrath of incoming vehicle emissions regulations.

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.

Have you driven a Subaru in the last 10 years? The drive experience here is pretty much uniform with the rest of the automaker’s range.

This means a lot of very appealing traits. For example, the new Impreza has a comfortable, compliant ride, really nicely weighted steering, and solid handling even on slippery surfaces courtesy of the all-wheel drive system.

The FB series engine also has a good bit of pull fairly early in the RPM range which makes it deceptively spritely, although power really hollows out the more you push it.

This makes it nice to drive around town, but less impressive when it comes to overtaking on the freeway.

This is reinforced by the continuously variable automatic which lends the engine a thrashy, rubbery character when pushed, but is nice and predictable at lower speeds.

The rev-happy engine is also quite noisy when a lot is asked of it, and like a lot of Japanese cars, but Subarus in particular, tyre roar picks up in the cabin above 80km/h.

It’s a comfortable and family-friendly drive, and I particularly like the way the plethora of active safety systems sit by the wayside and don’t interfere with the overall experience.

It is just a bit of a shame it doesn’t move the drive experience forward by a huge amount. The current Impreza doesn’t feel meaningfully different from the fifth-generation version which debuted in 2016.

The majority of active safety equipment is standard across all three Impreza variants including auto emergency braking up to freeway speeds with reverse auto braking, lane support systems, blind-spot monitoring with rear cross-traffic alert, traffic sign recognition, lead vehicle start alert, driver attention alert, and adaptive cruise control.

Stepping up to the 2.0R or 2.0S nets you the front parking camera for a 360-degree parking suite, and high-beam assist for the LED headlights.

Expect the usual traction, brake, and stability controls, alongside the more modern torque vectoring system and an impressive suite of nine airbags. The new Impreza is yet to be rated by ANCAP.

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.

Subaru offers its fairly standard five-year and unlimited kilometre warranty on the Impreza, with 12 months of roadside assist included.

There is also a five-year fixed-price service program covering the first 75,000km, although it’s nowhere near as affordable as the Corolla or i30, coming in at an average annual cost of $464.64.

The Impreza needs to be serviced once every 12 months or 15,000km, whichever occurs first.