MG Im5 vs Lexus ES250

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.

Since day one Lexus has aimed to prise buyers away from the limpet-like grip of traditional luxury car players. Conventional marketing wisdom says consumers buy brands, with the actual product a secondary consideration. 

The updated ES has the value, efficiency, safety, and driving refinement to again challenge the establishment. Amazingly, the ownership package, specifically the warranty, is starting to lag the market. 

But for open-minded premium buyers this product is worth a look before following a well-worn brand path. And if it was my money, the ES 300h Luxury with Enhancement Pack is the range sweet spot for value and performance.

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.

From shy wallflower to life of the party, the Lexus ES was given a comprehensive design makeover for its seventh generation.

A dramatic, angular exterior incorporates signature elements of the Lexus brand's distinctive design language including an unmissable ‘spindle grille’, but is still clearly recognisable as a conventional 'three-box’ sedan.

The jagged headlights now feature ‘tri-beam’ LEDs on F Sport and Sports Luxury grades, adding an extra air of purpose to an already bold face. And the grille on Luxury and Sports Luxury models is now made up of multiple L-shaped elements, mirrored across the top and bottom sections, then finished in gunmetal grey for a close to 3D effect.

The ES is offered in 10 colours - ‘Sonic Iridium’, ‘Sonic Chrome’, ‘Sonic Quartz’, ‘Onyx’, ‘Graphite Black’, ‘Titanium’, ‘Glacial Ecru’, ‘Radiata Green’, ‘Vermillion’ and ‘Deep Blue’ with two other shades reserved for the F Sport only - ‘White Nova’ and ‘Cobalt Mica.’

Inside, the dash is a mix of simple sweeping surfaces contrasted by a flurry of activity around the centre stack and instrument cluster.

Located roughly 10cm closer to the driver, the new multimedia screen is a 12.3-inch unit with touch functionality, a welcome alternative to the laggy and inaccurate Lexus ‘Remote Touch’ trackpad set-up. Remote Touch remains, but my advice is to ignore it and use the touchscreen.

The instruments sit in a deeply hooded binnacle with buttons and dials on and around it. Not the sleekest design in the segment and passable only from an ergonomic point-of-view, but the overall feel is suitably premium.

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. 

An overall length just under 5.0m long shows how much the ES and its competitors have crept up in size over recent generations. The Merc C-Class is more a mid-size car than the compact sedan it once was, and at nearly 1.9m wide and standing a bit over 1.4m tall the ES more than matches it for space.

There's plenty of room up front, the car feeling open and spacious from behind the wheel, thanks in part to the low sweep of the dash. And the rear is just as commodious.

Sitting behind the driver's seat set for my 183cm (6'0”) position I enjoyed good leg and toe room, with more than enough headroom, despite inclusion of a tilt and slide glass sunroof on all models.

Not only that, entry to and egress from the rear is a breeze thanks to a large aperture and wide opening doors. And while the back seat is best for two, three adults across is do-able without too much pain and suffering for short to medium journeys.

Connectivity and power options are plentiful with twin USB ports and a 12-volt socket front and rear. And storage starts with two cupholders in the front centre console, and another pair in the fold-down rear centre armrest.

If the remote touch system was (deservedly) given the boot, there would be room for extra oddments space in the front console.

The front door pockets are adequate rather than large (smaller bottles only), the glove box is modest, but the storage box (with padded armrest lid) between the front seats is more generous.

There are adjustable air vents for rear passengers, which you'd expect in this category, but are always a plus none-the-less.

The rear door pockets are okay, except the opening is relatively slim so bottles are a struggle, but there are map pockets on the back of both front seats as another bottle option.

Important to note that while boot space is decent at 454 litres (VDA) the rear seat doesn't fold. At all. A lockable ski port door sits behind the rear armrest, but the lack of a split-folding back seat is a significant practicality compromise.

A reasonably high loading lip into the boot isn't great, either, but there are tie-down hooks to help secure loose loads.

The Lexus ES is a no-tow zone and a space-saver spare is your only flat tyre option.

The existing ES 300h (the ‘h’ denoting hybrid) is now joined by a non-hybrid model using the same petrol engine, tuned specifically to run without the support of an electric motor.

The pre-update, hybrid-only ES line-up spanned six model variations across a roughly $15K price spread from the ES 300h Luxury ($62,525) to the ES 300h Sports Luxury ($77,000).

Now there are five models with an ‘Enhancement Pack’ (EP) available on three of them, for an effective range of eight grades. Again, it's a $15K spread, stretching from the ES 250 Luxury ($61,620, before on-road costs) to the ES 300h Sports Luxury ($76,530).

Let's kick-off with the ES 250 Luxury. Aside from the safety and powertrain tech covered later in the review, the ‘entry-level’ grade is loaded with standard features including, 10-way power-adjustable and heated front seats, dual-zone climate control air, active cruise control, a new 12.3-inch multimedia touchscreen, satellite navigation (with voice control), keyless entry and start, 17-inch alloy wheels, a glass sunroof, auto rain-sensing wipers, plus 10-speaker audio with digital radio, as well as Apple CarPlay and Android Auto compatibility. The steering wheel and gearshift are leather-trimmed, while the seat trim is synthetic leather.

An Enhancement Pack adds wireless phone charging, privacy glass, a colour head-up display, and $1500 to the price tag (total $63,120).

The next rung up the price ladder brings the hybrid powertrain into play, so the ES 300h Luxury ($63,550) retains all the features of the ES 250 Luxury EP and adds a rear spoiler and power adjustable steering column.

Opting for the ES 300h Luxury EP then adds a power boot lid (with kick sensor), leather-accented trim, 18-inch rims, panoramic view monitor (overhead and 360-degree), 14-way power driver's seat (with memory settings), ventilated front seats, side blinds and a power rear sunshade, as well as $8260 to the price (total $71,810).

Next, as the name implies, two ES F Sport models dial up the performance personality.

The ES 250 F Sport ($70,860) retains the features of the ES 300h Luxury EP (except side blinds) while adding LED headlights with adaptive high-beam, a ‘wire-mesh’ grille, sports body kit, 19-inch wheels, performance dampers, an 8.0-inch driver display, alloy interior accents and grippier F Sport seats.

Stump up for the ES 300h F Sport ($72,930) and you'll ride on an adaptive suspension system with two driver-selectable settings, Go one step further and select the ES 300h F Sport EP ($76,530) and you'll also be cranking up a 17-speaker Mark Levinson audio system and warming your hands on a heated steering wheel.

Then, the top-of-the ES pyramid, the 300h Sports Luxury ($78,180), puts it all on the table adding top-shelf semi-aniline leather-accented trim, power adjustable, reclining, and heated rear outboard seats, tri-zone climate control, as well as side door blinds and a power rear sunshade. The rear centre armrest also features controls for the sunshade, seat heating (and angle), as well as audio and climate settings.

That's a lot to take in, so here's a table to help clarify the model walk-up. But suffice it to say this ES maintains Lexus’ reputation for value, testing its competitors in the luxury sedan space.

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 ES 250 is powered by an all-alloy, 2.5-litre, naturally aspirated (A25A-FKS) four-cylinder engine featuring DVVT (Dual Variable Valve Timing) - electrically actuated on the intake side, and hydraulically on the exhaust side. It also uses a combination of direct and multi-point fuel-injection (D-4S).

Maximum power is a handy 152kW at 6600rpm and peak torque of 243Nm is available between 4000-5000rpm, with drive going to the front wheels via an eight-speed automatic transmission.

The 300h features a modified (A25A-FXS) version of the same engine using the Atkinson combustion cycle which plays with valve timing to effectively shorten the intake stroke and lengthen the expansion stroke.

The down-side of this set-up is a loss of low-end power, while the up-side is improved fuel efficiency. Which makes it perfect for a hybrid application where an electric motor can make up for the low-end shortfall.

Here, the result is a combined output of 160kW, with the petrol engine producing its peak power (131kW) at 5700rpm.

The 300h's motor is a permanent magnet synchronous type producing 88kW/202Nm, and the battery is a 204-cell nickel-metal hydride type with a capacity of 244.8 volts.

Drive again goes to the front wheels, this time via a continuously variable transmission (CVT).

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. 

Hyundai's official fuel economy figure for the ES 250, on the ADR 81/02 - urban, extra-urban cycle, is 6.6L/100km for the Luxury and 6.8L/100km for the F-Sport, the 2.5-litre four emitting 150 and 156g/km of C02 (respectively) in the process.

The official combined cycle fuel economy figure for the ES 350h, is just 4.8L/100km, the hybrid powertrain emitting only 109g/km of C02.

While the launch program didn't allow us to capture real-world (at the bowser) figures we did see a dash-indicated average of 5.5L/100km in the 300h, which is brilliant for a car in this class, weighing in at 1.7 tonnes.

You'll need 60 litres of 95RON premium unleaded to fill ES 250's tank and 50 litres to brim the ES 300h. Using Lexus figures that equates to a range of a little less than 900km in the 250 and just over 1000km in the 350h (900km using our dash-indicated number).

To further sweeten the fuel economy equation Lexus provides an Ampol/Caltex five-cents-per-litre discount as a permanent offer via the Lexus app. Nice.

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 first thing you notice behind the wheel of this ES is how extraordinarily quiet it is. Sound absorption materials are stuffed all around the body. Even the engine cover has been designed to keep the decibels down.

And ‘Active Noise Control’ (ANC) uses the audio system to generate “noise-cancelling waves” to suppress mechanical clatter from the engine and transmission. The car is eerily EV-like in it's pin-drop interior tranquility.

We focused on the ES 300h for the launch drive, and Lexus claims 0-100km/h 8.9sec for this version of the car. It feels every bit that quick, but the engine ‘noise’ and exhaust note are like the humming of a distant bee hive. With thanks to Daryl Kerrigan, how's the serenity?

Around town the ES is composed and supple, absorbing pock-marked urban irregularities with ease, and on the freeway it feels like a hovercraft.

Lexus makes a lot of noise about the torsional stiffness of the ‘Global Architecture-K’ (GA-K) platform sitting under the ES, and it's clearly more than hot air. Through twisting B-roads it remains balanced and predictable.

Even in non-F-Sport variants the car points nicely and will steer accurately on the throttle through constant radius corners, with only modest body roll. The ES doesn't feel like a front-wheel drive car, with neutral handling up to an impressively high limit.

Luxury and Sports Luxury grades are offered with three drive modes - ‘Normal’, ‘Eco’ and ‘Sport’, tweaking engine and transmission settings for economy or a more spirited drive.

ES 300h F Sport variants add three more modes - ‘Sport S’, ‘Sport S+’ and ‘Custom’, further revising engine, steering, suspension and transmission characteristics.

Despite all the tuning options, road feel is not the ES's strongest suit. Dialing in sportier modes will add steering weight but no matter what the setting, the connection between the front wheels and the driver's hands is less than intimate.

The CVT auto suffers some of that disconnect between road speed and revs, the engine moving up and down the rev range in search of the power/efficiency sweet spot. But wheel-mounted paddles allow for manual shifting through pre-set ‘ratio’ points, and that option works nicely if you prefer to take the reins.

And when it comes to slowing down the ‘Auto Glide Control’ (ACG) system smooths out regenerative braking when you're coasting to a stop.

The conventional brakes are ventilated (305mm) discs at the front and a solid (281mm) rotor set-up at the rear. Pedal feel is progressive and outright stopping power is strong.

Random notes: The front seats are great. Super-comfortable yet neatly bolstered for secure location. The F Sport's chairs, even more so. The new multimedia touchscreen is a winner. It looks good and menu navigation is agreeably straight forward. And the digital instrument cluster is similarly clean and clear.

The Lexus ES scores a maximum five-star ANCAP rating, the car first assessed in 2018, with updates in 2019 and September 2021.

It received high ratings against all four key criteria (adult occupant protection, child occupant protection, vulnerable road user protection, and safety assist systems).

Active crash-avoidance technology on all ES models includes, a pre-collision safety system (Lexus-speak for AEB) active from 10-180km/h, with pedestrian and daytime cyclist detection, dynamic radar cruise control, road sign assist, lane tracing assist, fatigue detection and reminder, tyre pressure monitoring, a reversing camera, as well as rear cross-traffic alert and parking support brake (including an intelligent clearance sonar).

Other features like blind-spot monitoring, adaptive high-beam and a panoramic view monitor are included on F Sport and Sport Luxury grades.

If a crash is unavoidable there are 10 airbags on-board - dual front, driver and front passenger knee, front and rear side airbags and side curtain airbags covering both rows.

There's also an active bonnet to minimise pedestrian impact injuries, and ‘Lexus Connected Services’ includes an SOS call (driver-activated and/or automatic), and stolen vehicle tracking.

For child seats there are top tethers for all three rear positions with ISOFIX anchors on the outer two.

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.

From the time it arrived in the Australian market just over 30 years ago Lexus has made the ownership experience a key differentiator for the brand.

Its focus on post-purchase benefits and ease of servicing shook the established luxury players out of their button-backed leather lounge slumber and into a new aftersales mindset.

That said, the Lexus standard four-year/100,000km warranty is some way off luxury newcomer, Genesis, as well as traditional heavyweights Jaguar and Mercedes-Benz, all at five years/unlimited km.

Yes, Audi, BMW and others are at three years/unlimited km, but the game has moved on for them, too. Plus, the mainstream market standard is now five years/unlimited km, with some at seven, even 10 years.

On the other hand, the ‘Lexus Encore Privileges’ program provides 24-hour roadside assistance for the duration of the warranty, as well as, “dining, hotel partnership and luxury lifestyle experience offers exclusive to owners of new Lexus vehicles.”

The Lexus Enform smartphone app also offers access to everything from real-time advice on events and the weather to nav destinations (restaurants, businesses, etc), and more.

Service is scheduled every 12 months/15,000km (whichever comes first), and the first three (capped price) services for the ES are $495 each.

A Lexus loan car is provided while your pride and joy is in the workshop, or a pick-up and return option (from home or office) is available. You'll also receive a complimentary wash and interior vacuum.