Lexus Lm350H vs MG Im5

What's the difference?

The Lexus LM is going to be a niche model. This was not designed to appeal to people that may have bought a Toyota Tarago back in the day, or even a Kia Carnival now.

It has a specific purpose for ferrying people around in absolute comfort and at that, it succeeds in a big way.

It’s just a bonus that it’s great to drive.

Welcome to the automotive equivalent of a business class airline suite.

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

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.

Look, people movers are not considered the sexiest of automotive body styles, but that’s changing.

The Kia Carnival and Hyundai Staria are examples of good MPV design.

And the Lexus LM steps it up again. 

It is based on Toyota’s TNGA-K architecture that underpins a bunch of Toyota and Lexus models, including the Lexus RX, and it measures a whopping 5.1 metres long and has a three-metre wheelbase.

It shares its underpinnings with the latest generation Japanese-market Toyota Alphard, which is a cult hit in Australia among the grey import set.

The front-end design is bold, with the latest take on Lexus’ big ‘spindle grille’, pinched slimline headlights and a stubby nose. 

I am a big fan of this design. It is far more than a box on wheels and it has quite a bit of presence. 

The interior design up front is modern Lexus, with a few familiar Toyota touches, and while it’s not exactly minimal, it’s still visually appealing.

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.

While most of the fun happens in the second row of the Lexus LM, there is a lot to like in the front compartment.

The dash is dominated by a large touchscreen that houses Lexus’ latest multimedia setup. The logical menu and uncomplicated sub-menus ensure this is an easy system to navigate. Speaking of, the in-built sat-nav is one of the better systems I have experienced. 

Comfort isn’t just the domain of the second row - the driver’s seat is very supportive and comfortable, with power adjustment.

There’s plenty of glass including a smaller front quarter window that helps eliminate front blind spots, so forward visibility is exceptional. Rearward visibility is aided by the digital rear-view mirror that is designed to ensure privacy for second and third-row occupants. You don’t want the chauffeur spying on you while you’re sleeping, do you?

The other big tick for me is the driving position. Other people movers, namely the Hyundai Staria and Mercedes-Benz EQV, have very low window lines and it leaves you with a feeling of sitting on the car, rather than in it. I am sure it helps with extra light and it probably makes it easier for kids to see out of, but from a driving perspective, I find it a little disconcerting.

But the LM has flipped that. The front compartment is designed in such a way that it feels like a cockpit that you’re ensconced in. This helps the driver feel more connected with the car, and in the LM it feels like you’re sitting in the driver’s seat of a sporty sedan, not a five-metre bus. Very well done, Lexus.

And now to the main event - the second row.

Where to begin. Let’s start with space. Because there is so much of it. Unsurprisingly given the seating layout, there is an unending amount of head, leg, knee, bum, shoulder and whatever-else room. I can’t imagine anyone complaining about space back there.

Also, getting in and out is a breeze thanks to the sliding power doors on both sides. These can be opened from the front seat, and via several buttons in the rear.

Those captain’s seats are plush. Not quite Benz S-Class plush, but still.

They are adjustable six ways - power adjustable, of course - and they’re heated and ventilated. They recline almost flat, too, if you need a nap on the way to the country estate. And while you do that you can look up through the split sunroof, or close the shade a number of ways.

Is there a massage function? Of course there is a massage function. And it’s not bad. You can choose two settings - weak and firm.

Adding to the feeling of a business class airline seat, there is a fold-out table in the armrest, although it’s a smallish one. And there is dual-zone climate control in the rear.

There is a roof-mounted control panel for things like climate, sunshades and sunroof blinds, but much of this can also be controlled by the Apple iPhone-like devices clipped into both rear seats. These are closer to the seats, so it is easier to access than the roof.

Another function in the device is the Climate Concierge that features different modes - Dream, Relax, Focus, Energise. Depending on which one you choose, it alters the seat settings, massage, climate and lights to suit.

I love the massively wide side windows that are tinted (or privacy glass), too.

Other amenities include map pockets, knee and roof-mounted air vents and a 14.0-inch display screen that retracts from the roof and connects to an HDMI cable, allowing you to watch whatever you want.

The third row is not as appealing as the second. It is technically a three-person row, but the width and the fact that it has a sizeable gap in the centre suggests that this is best thought of as a six-seater van.

The seats are not as plush of course, so you might not want to spend too much time in that row unless you are a small child. But you do get USB-C ports, cupholders, air vents, lights, sunglasses holder, power side shades and grab handles.

Getting in and out of the third row can take a while. It’s all power adjustable, so you don’t have to lift anything heavy - but it takes a while for the second row seats to move forward and up.

With all seats in place the cargo space is limited. In fact, it’s just 110 litres.

That’s similar to what you get in a seven-seat SUV. But it did fit all our overnight luggage easily.

Drop the rear row and that expands to a maximum of 1191 litres in the 350h or 752 litres in the 500h.

All grades have a space-saver spare wheel.

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.

There are two hybrid powertrains available. Coming next year, the LM500h combines a 2.4-litre turbocharged petrol engine and a hybrid setup, making for power and torque of 202kW and 460Nm respectively. It is all-wheel drive and is paired with a six-speed automatic transmission.

The LM350h comes with a 2.5-litre naturally aspirated petrol engine and a parallel hybrid system, offering up a total system output of 140kW and 239Nm. The 350h comes in front or all-wheel-drive guise and uses a continuously variable transmission (CVT).

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.

As you’d hope with an all-hybrid line-up, the LM excels when it comes to combined cycle fuel efficiency. The 350h FWD sips just 5.5 litres per 100 kilometres, while the AWD version is 5.6L/100km. The 500h is a little thirstier at 6.6L. 

Our drive was so brief we did not get to record an on-test fuel figure.

The theoretical range of the LM, considering the 60-litre fuel tank and 5.5L/100km (350h) and 6.6L/100km (500h) fuel consumption figures is about 1000km.

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. 

As mentioned earlier, I spent much more time in the second row as a passenger than I did behind the wheel of the LM350h. But it was enough time to capture some initial high-level drive impressions.

But let’s start in the rear. The ride in the second row is comfortable - as you’d hope. Our trek from Melbourne’s inner north down to the Mornington Peninsula included a lot of freeway, which was smooth. The only thing that disturbed the peace was a chunky bridge join that caused a bit of a thump. But we were hardly disturbed. 

Back in the driver’s seat, there’s a lot to like about how the LM350h drives. First of all, it feels smaller on the road than its ample dimensions would otherwise suggest. It even feels relatively light on the road. 

After the LM, I drove a Mercedes-Benz EQE SUV that has a similar kerb weight (the Lexus is about 2.4 tonnes), and the LM felt lighter.  

The hybrid powertrain is responsive enough, offering decent acceleration from a standing start. The more potent 500h will of course be quicker.

The transition from electric to petrol propulsion is pretty smooth in Lexus (and Toyota) models these days, and the additional noise-deadening materials in the LM ensure it’s subtle.

The 2.5-litre petrol engine is really only noticeable when accelerating hard, and the CVT a slight drone, but it’s in no way unpleasant. 

Otherwise it’s a superbly refined and quiet cabin on all but the absolute worst road surfaces. Whisper quiet power windows adds to that feeling of luxurious refinement.

Given the brief time behind the wheel, we didn’t get to test the handling capability of the LM, so that might have to wait for a review in the New Year. 

The steering is heavily weighted and doesn’t feel overly responsive, but it’s perfectly suited to this sort of vehicle.

That supple ride we experienced in the rear was also evident behind the wheel.

This was especially impressive on a couple of pock-marked peninsular back roads. The ride is also much more compliant than the Mercedes-Benz EQV I tested early in 2023.

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.

When you buy a Lexus, you get a bit more than a car. The brand has a customer loyalty program - Lexus Encore - and depending on what model you buy, you are eligible for some pretty cool discounts, bonuses and experiences. 

There are three tiers, depending on your model. UX, NX, RX and ES fall under regular Encore, and electric models the RZ and UX300e sit beneath Electrified Benefits. But the LM, as well as the LS, LC and LX are under Encore Platinum - the top tier. 

That means access to the ‘On Demand’ program that allows access to another Lexus model for a few days or longer. So if you own an LC Convertible but need an RX for a few days to ferry people around, that’s all free. There’s valet parking service loans and more.

It also includes upgrades at Lexus partners. Our launch took us to Jackalope Hotel on the Mornington Peninsula, which is a Lexus partner, and you can get a bunch of extras here as a Lexus owner that other guests won’t get.

In terms of other ownership details, the LM is covered by a five-year, unlimited-kilometre warranty, and the servicing schedule is every 12 months or 15,000km.

Lexus is yet to announce the capped-price servicing details for LM, but it is expected to cover five years, and should be in the vicinity of approximately $700 per service.

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.