Lexus UX vs MG Im5

What's the difference?

The updated Lexus UX300h Luxury is a solid entry in the premium compact SUV segment. It doesn’t break new ground, and there are areas that could be improved, but it handles well, offers a thoughtful selection of amenities for a base-grade luxury model, and its compact size makes it easy to park almost anywhere. For buyers seeking a stylish, efficient, and practical hybrid with a luxury badge, it’s a dependable choice.

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 updated Lexus UX is technically a compact SUV, but it feels more like a hatchback that's taken a small dose of steroids. The facelift brings a sharper look with a stylised 3D spindle grille, new air intake vents, fresh 17-inch alloy wheels, updated daytime running lights and a full-width rear light bar. The sculpted bodywork still showcases Lexus’ signature origami-like panelling and, overall, it’s a handsome little thing. That said, the heavy use of black plastic moulding around the lower edges detracts from its premium appeal.

Inside, the cabin takes a more understated approach. Up front it feels premium-enough, with synthetic leather trims, soft-touchpoints and those high-tech dual 12.3-inch displays headlining the dash. Your eye moves smoothly across the layout without lingering too long on any single element, which adds to the sense of elegance.

Not everything feels top-tier, though. Hard plastics are still scattered throughout the cabin, and they’re especially noticeable in the back seat where the doors have very little in the way of a soft surface. Yes, this is the base grade, but in a car wearing a luxury badge, it’s something you notice more than you should.

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 UX is a compact SUV, so it's best not to expect a sprawling interior. The front row offers the best space and comfort, with wide door openings and a ground clearance that makes it easy to hop in without any grunts. The seats are comfortable enough on long drives, although some fatigue creeps in on the passenger side due to the lack of lumbar support. Both front seats are power-adjustable and heated, and with the steering wheel also adjusting electrically, it’s easy to dial in a good driving position.

Move to the rear seats, and space becomes noticeably tighter for adults. At 168cm, my knees press against the seat in front, and even my eight-year-old asked me to slide the passenger seat forward this week. That said, he’s been mostly comfortable thanks to the wide door openings, lightweight doors and well-padded seats.

My son did point out that the tall window sills make it hard to see out, which could be a deal breaker for younger passengers. There are three top tether anchor points, but fitting three child seats across is unrealistic.

Storage is on the slim side, but the dual-opening centre console is clever, and there are two cupholders and drink bottle holders up front. The rear row only gets a single map pocket and two cupholders. A few more cubbies for things like sunglasses or keys would be welcome, as the cabin can quickly feel cluttered if you’re not careful.

Technology is neatly integrated. The dual 12.3-inch displays look sharp with clear graphics, and the touchscreen is responsive. The updated operating system isn’t a big leap forward, but it’s easy to use and the wireless Apple CarPlay and Android Auto work seamlessly. There’s also sat nav, a wireless charging pad, four USB-C ports, a single USB-A port and a 12-volt socket for charging.

The boot looks modest at first glance, especially with the floor set in its highest position, but it still swallowed a big grocery shop with no fuss. Officially, capacity is 364 litres, which makes it the smallest compared to its nearest rivals, although the adjustable floor helps with taller items or creates a handy nook for smaller ones.

A bigger drawback is the lack of a spare tyre as you only get a repair kit. For city drivers that might be fine, but for those of us who live regionally or do longer trips, a spare tyre is a must-have. On the plus side, the powered tailgate with kick function is standard here, whereas rivals make you pay extra for it.

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. 

At $80,990, drive-away, the IM5 Performance sits at the top of a three-grade line-up that starts with a 75kWh RWD Premium model at $60,990, followed by a mid-spec 100kWh RWD Platinum for $69,990, both drive-away.

Its most prominent competitor is arguably the Tesla Model 3 Dual Motor AWD ($80,900), with others including the BYD Seal Performance AWD ($68,798), Hyundai Ioniq 6 AWD Epiq ($86,500) and Polestar 2 Long Range Dual Motor Performance ($80,380).

Worth noting, too, the IM6 range - essentially the same car with a taller SUV body - has the same model walk-up and identical pricing.

Once you’ve crossed the $80K threshold it’s fair to expect a decent basket of standard fruit and aside from the dynamic and safety features we’ll get to shortly, the IM5 Performance comes to the party.

Highlights include a double-glazed panoramic roof, power-adjustable (12-way driver, six-way passenger) heated and ventilated front seats (also heated in the rear), dual-zone climate control, 20-speaker audio (with digital radio), 256 colour ambient lighting, a power tailgate (with hands-free function) and 20-inch alloy rims.

There’s also adaptive cruise control, a heated steering wheel, wireless Android Auto and Apple CarPlay, LED headlights, keyless entry and start, wireless device charging (50W), a 10.5-inch central control screen and a sweeping 26.3-inch upper screen; the right side for instrumentation and car data, the (touch-sensitive) left side for multimedia and other onboard functions.

There’s more and it’s clear this car at least matches or betters its direct competitors for included equipment.

The UX300h Luxury runs a hybrid setup that pairs a 2.0-litre four-cylinder petrol engine with two small electric motors. Combined, the system produces 146kW of power, and it drives through an electronic continuously variable transmission (eCVT). This powertrain sees it outmuscle the old UX250h by 15kW.

On paper, those new outputs sit neatly in the middle of this segment. Out on the road, though, the hybrid assistance helps the UX feel a little more sprightly than the numbers suggest. The electric motors give it an eager step-off from traffic lights and smooth power delivery around town, while the petrol engine takes over when more effort is needed.

It's a good combination for a little car.

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.

Fuel efficiency is a real strength. Lexus claims 4.2L/100km on the combined cycle, which is impressive against petrol-only competitors. With a 43L tank, you’re looking at a theoretical driving range of over 1000km between fills.

In my week of mixed open-road and urban driving, I saw a real-world figure of 5.0L/100km, and that’s without holding back on using the available power, which makes the claim feel very achievable.

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 UX300h Luxury proves itself to be a versatile little SUV. It offers ample power with prompt acceleration, making it easy to confidently take a gap in traffic or keep pace on the open road. It feels like a solid all-rounder that balances everyday usability with just enough grunt when you need it.

There are three selectable drive modes, though in practice they don’t feel dramatically different. The hybrid system can sometimes sound a little flustered at times as it switches between the two components, but it doesn’t translate into anything unsettling from behind the wheel. The actual driving experience remains smooth and predictable.

Ride comfort is another strength. The suspension does a good job of soaking up small bumps, and unless you’re on the highway in torrential rain, the cabin stays impressively quiet.

Visibility is mostly good, although the A- and B-pillars can occasionally intrude from the driver’s seat. It’s never enough to be a deal breaker, but worth noting. Where the UX really shines is in tight spaces because its 10.4m turning circle and compact dimensions makes it stupidly easy to park. The reversing camera is clear, though for a car wearing a luxury badge, it feels like a missed opportunity not to include a 360-degree camera as standard.

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.

No independent ANCAP safety assessment at this point but there’s a full suite of active safety tech onboard including AEB, lane departure warning, blind spot detection, rear cross-traffic alert & braking, forward collision warning, lane-change assist, tyre pressure monitoring and heaps more. And we touch on how it all operates in the Driving section above.

There are no less than nine HD cameras, 12 ultrasonic sensors and three millimetre-wave radars on duty.

If a crash is unavoidable there are seven airbags including full-length side curtains and a front centre bag. Multi-collision brake also minimises the chances of subsequent impacts after an initial crash. There are also three top tether points and three ISOFIX child seats anchors across the second row.

All right on the pace for this part of the market and the IM5’s competitive set.

The UX300h Luxury comes with a five-year/unlimited kilometre warranty, which is comparable to its nearest rivals, although we’re seeing increasingly generous terms from mainstream brands.

Servicing is straightforward thanks to a five-year capped-price program, with each service costing $595. The intervals are well spaced at every 12 months or 15,000km, whichever comes first.

This grade also includes a three-year complimentary membership to the Lexus Encore program. Membership brings access to the Lexus Connected Services phone app, allowing you to customise your driver profile and even use a digital key. Beyond that, Encore members enjoy perks with supporting partners, including Westfield and Ampol.

There's around 40 official Lexus service centres located around Australia but you can make use of its sister brand's (Toyota) service centres if you're in a pinch.

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.