Lexus ES350 vs Isuzu MU-X

What's the difference?

The ES300h is outstanding in terms of ride comfort, refinement and value. If you’re looking for a true driver’s car then a Lexus RCF is probably a better tree to bark up, but if you’re looking to ferry passengers in a serene, prestigious and fuel-efficient way, then look no further.

The MU-X has plenty of appeal as a daily driver – dependable and it’s a proven 4WD wagon.

Does the 2.2-litre engine add anything substantial to the mix?

Well, it's better than the 1.9-litre, that's for sure, and there's a lot to like about this MU-X in terms of its off-road capability, driver-assist tech, standard features and all-round driveability. And, while the LS-T lacks the top-shelf polish of the X-Terrain, it’s still an appealing potential purchase.

But the 3.0-litre option is better because while the 2.2L is very effective off-road and general day-to-day driving, it lacks grunt and has to work that much harder and is that much noisier under load than the 3.0-litre in most driving scenarios, including 4WDing.

If you think all Lexus models look the same, then pop on over to the Audi, BMW or Benz websites and take a peek at their line-ups. Compared to the ranges from those prestige car makers, Lexus models look wildly different from each other.

Opinions on that ‘Spindle Grille’ are as polarising as views on politics or religion. Personally, I like how upfront and brave the grille design is, but what seems odd to me is that it’s almost as if this was the only place on the exterior where designers were allowed to be a bit adventurous. The rear, while cleanly styled is a bit plain. The bottom just doesn’t match the face.

The ES300h’s roofline in side profile is beautiful as it sweeps almost fastback-style to the boot lid. Again, not the most dramatic styling, but it’s still pleasing in the sense that the design flows well together. The same can be said for the fit and finish – the panel gaps are near-perfect.

This perfection continues into the cabin, where the materials and craftsmanship matches German prestige rivals in places (the door handles, leather and digital instrument cluster, for example), only to be let down in other areas which disclose its budget Toyota family connection (the air vents, steering wheel and display screen).

The ES300h’s interior design isn’t going to set everybody’s world on fire, but there will be those who adore its asymmetrical styling with different textured surfaces that fold, swoop and jut up against each other’s space. Have a look at the images, they’re of the Sports Luxury which sits above the Luxury in the two grade line-up.

The differences visually between the grades is minimal. The Luxury has 17-inch alloys, while the Sport Luxury has 18-inch.

New colours for this generation include Glacial Ecru (the sandy hue of our test car in the images) and Radiata Green. Both grades’ interiors come in a variety of colour schemes, including Black, Chateau, and Topaz. Exclusively for the Sport Luxury cabin is Rich Cream, too. The Sports Luxury steering wheel has wood trim.

One of the more peculiar design elements of the ES300h’s cabin design, and there are a few, are the controls for the drive modes and traction control. They sit like horns on the instrument cluster hood, as though these are things the driver will constantly be reaching for, when in reality most people will never touch the traction control button.

A new-generation car means new foundations, and the ES300h is built on the GA-K platform which underpins the Camry. The platform is part of the latest global architecture which Toyota and Lexus are now using to build its vehicles.

The dimensions of the ES300h, if you’re wondering if it will fit in your garage, are just under 5.0m long, 1.9m wide and 1.4m tall.

In terms of appearance, the MU-X remains largely unchanged from the most recent iteration. And that’s a good thing. It’s blocky enough to be recognisable but sleek enough to remain inoffensive. Worth noting the door handles, window trims, front fender accents, roof rails, and side steps on the LS-T are gloss black.

Inside, nothing much has changed (other than a newly-introduced idle start/stop button) and, as such, the MU-X retains a low-key familiarity that makes it a comfortable space. Generally, design-wise, the MU-X more than holds its own against the likes of the Toyota LandCruiser Prado and Ford Everest.

The Lexus ES300h is a five-seater sedan, but it’s really designed to sit two comfortably in the back, given there’s a large driveshaft hump in the floor and that the outboard seats are divided by a fold-down control panel/armrest.

Legroom in the second row is ample. I’m 191cm tall, and I had about 20mm of space between my knees and the seat back when it was in my driving position. Headroom gets tight with that sloping roofline, but there’s just enough space thanks to the low hip point of the rear seats.

Cabin storage is excellent. The fold-down armrest for the rear seats has a storage tray and two cup holders, while the large centre console bin has a lid which can open towards the driver and also to the front passenger (I spent way too long marvelling at how it worked). There are two cup holders up front and decent-sized door pockets, too. Those rear doors open wide for easy exit and entry.

Boot space in the ES300h is 454 litres (VDA), beating the 410-litre cargo capacity of the BMW 530e.

As far as power outlets, you’ll find two USB chargers in the centre console storage bin and a Qi wireless charging pad, which is awkwardly situated making it hard to place larger phones onto it.

The interior has a familiar and practical feel about it and the cabin is an easy space in which to become comfortable. Controls are easy to locate and operate and charging options are numerous – a mix of USB-A, USB-C (front and second row) and 12V.

Storage places include recesses for the bits and pieces from your pockets, a deep-ish centre console, as well as dual cupholders up front, cupholders in the rear fold-down centre armrest and bottle holders in the doors. There are also cupholders either side of the third row.

The MU-X has physical-button options to activate some functions (including to switch on the audio system, to adjust volume and access sat nav).

Seats are comfortable and supportive through all three rows – yes, even the third row is roomy enough to prevent whining from whoever is back there.

My camera guru/photographer/sergeant-at-arms, Glen Sullivan, reminded me that the third-row seats don’t have ISOFIX or top-tether points for child seats. Thanks, mate.

The cargo area is 311 litres with all three rows in use, 1119L with the third row flat and 2138L with the second and third rows stowed away.

The rear cargo area has a cargo cover, tie-down points, a 12V power outlet, a storage space under the rear cargo area floor and a space for tools inside the driver’s side rear cargo wall. The MU-X’s full-size spare (bravo!) is attached to its undercarriage.

The new MU-X with a 2.2-litre, four-cylinder, turbo-diesel engine is available with a 4×2 or 4×4 drivetrain in several variants. Don’t worry, the 3.0-litre is still in the line-up.

Our test vehicle has the 2.2L and, it is priced at $71,400 before on-road costs.

Standard features include a 9.0-inch multimedia touchscreen system with sat-nav, wireless Apple CarPlay and Android Auto, an eight-speaker sound system, eight-way power-adjustable driver’s seat (four-way power-adjustable front passenger seat), heated front seats, a 7.0-inch driver display and 20-inch alloy wheels shod won 265/60R20 Bridgestone 684II HT tyres.

It also has white ambient interior lighting, remote engine start, rear privacy glass, power-folding and heated door mirrors (with side cameras) finished in gloss black, and leather-accented upholstery with grey stitching and synthetic leather on the door trims and centre console.

Exterior paint choices on the MU-X LS-T include 'Mineral White', 'Basalt Black mica', 'Moonstone White pearl', 'Magnetic Red mica', 'Neptune Blue mica', 'Mercury Silver metallic', and 'Obsidian Grey mica'. Anything other than standard Mineral White costs an extra $695.

As mentioned at the start of this review, in Australia the Lexus ES is only available with one powertrain variant – a petrol-electric hybrid.

This combines a 2.5-litre four-cylinder petrol engine making 131kW and 221Nm, with an electric motor that has an output of 88kW and 202Nm. The 244.8V nickel-metal hydride battery has been moved from under the boot floor in the previous generation car to under the rear seats, so it no longer eats into the cargo space.

The ES300h isn’t a plug-in hybrid, so battery recharging is done through regenerative braking.

A continuously variable transmission means seamless and smooth low-speed driving using just the motor, but under heavy acceleration the engine activates and you’ll hear that drone associated with CVTs.

This MU-X has a 2.2-litre, four-cylinder, turbo-diesel engine, producing 120kW at 3600rpm and 400Nm between 1600-2400rpm and it’s matched to an eight-speed automatic transmission.

Worth noting the 3.0L MU-X has a six-speed auto and produces 140kW (at 3600rpm) and 450Nm (1600-2600rpm) while the outgoing 1.9L MU-X has a six-speed auto and produces 110kW (3600rpm) and 350Nm (1800-2600rpm).

While the 3.0-litre has always been unstressed in most driving scenarios – even low-range 4WDing – the 2.2-litre feels underpowered. More about that in the ‘Driving’ section below.

The MU-X has a part-time 4WD system which includes a dual-range transfer case (with high- and low-range 4WD) and a rear diff-lock. The driver is able to shift from 2H (two-wheel drive, high-range) to 4H (4WD high-range) while on the move up to speeds of 100km/h. The diff-lock may only be engaged when the vehicle is in 4L (4WD low-range).

The MU-X also has a switchable terrain mode system which tweaks the engine, transmission and traction control to suit the driving conditions. 'Rough Terrain' mode, like a steroids-enhanced off-road traction control, is king of these modes when you’re off the bitumin.

This is the point of a hybrid, right? To save fuel? The electric motor can power the car at low speeds around car parks or in bumper-to-bumper traffic, and I found that after 104km of both urban and open road usage my fuel economy in the Sport Luxury was 5.4L/100km.

Lexus’ official combined fuel economy figure for both the Luxury and Sports Luxury is 4.6L/100km.

Official combined cycle (urban/extra-urban) fuel consumption for this MU-X is 6.7L/100km. The 1.9L MU-X offers 7.4L/100km while the 3.0L offers 7.6L/100km.

Actual fuel consumption on this test was 8.7L/100km.

The MU-X has an 80-litre fuel tank, so, going by that on-test fuel consumption figure, you should be able to get a driving range of about 920km. But remember, your fuel consumption may be completely different to mine because chances are you'll have friends, family pets, sporting equipment, camping gear, the whole kit and caboodle on board. I've only been carrying vehicle recovery gear, MaxTrax, and a first-aid kit, so I haven't had a huge amount of weight on board.

Two words: quiet and comfortable. Well that’s three words, but that sums up the ES300h on the road. Yes, rivals may have intelligent adaptive air suspension and leather made from free range cows, and they are supremely tranquil and sumptuous places, but challenging them is this ES300h.

Even with its regular shock absorbers and steel-spring suspension, the ride was outstanding for its comfort and composure on the worst roads Sydney could throw at it over the week we tested the car.

Front and rear seats were supportive and comfortable over long distances, too. From a driver’s perspective the experience was serene – this was an easy and relaxing car to pilot.

I’m not a huge fan of petrol-electric hybrid powertrains, but it suits the seamless personality of the ES perfectly, adding to the smoothness of the ride as it slipped silently through traffic.

Just don’t expect the ES300h to be rewarding from a dynamic driving perspective. The steering was heavy and a little numb, and while the handling was good, I felt disconnected from the road. And whenever I needed to move quickly the combustion engine would splutter to life and the CVT would begin to drone.

Before we launch into the off-roading section of this test, it’s worth noting the MU-X has always been decent on-road; composed, reasonably refined (for a 4WD wagon, anyway) and comfortable. And thankfully, with the 2.2-litre engine, not all of those characteristics have been thrown out the window.

It is quite noisy, especially under pressure when you have to do some heavy acceleration or when you have a bit of gear on board. When it has to work that bit harder than it usually does, it can become quite noisy. Admittedly, the 3.0-litre MU-X is also quite gruff, but there's an edge to the roughness in the 2.2-litre that is very noticeable on road.

This MU-X is quite sluggish off the mark, exhibiting a disconcerting lag under heavy throttle from a standing-start. And it’s far from the most dynamic vehicle to drive. But it has a tractability about it that manages to mostly negate these flaws.

Otherwise, the new eight-speed auto deserves credit as it’s slick and smooth in application and feels right at home in this wagon.

Now to off-roading. The MU-X is still very capable. In fact, even with the 2.2-litre engine, it remains one of the better-performing 4WD wagons straight out of the dealership, in terms of pure off-road capability.

The 3.0-litre MU-X is not the torquiest in this segment, but it offers ample pulling power available across a wide rev range – count on peak torque between 1600rpm and 2400rpm – and it delivers that pulling power in an even-handed fashion. The 2.2-litre MU-X has to work harder than its stablemate, and it’s noisier and harsher.

However, those characteristics don’t take away from how effective this MU-X is because it offers impressive off-road performance. It still has a decent amount of low- and mid-range torque, which makes dirt-road cruising and low-speed 4WDing easy.

The MU-X has part-time 4WD with high- and low-range 4WD gearing, a rear diff lock and overall it retains all of that off-road capability the 3.0-litre MU-X has been renowned for – so you don't lose any efficacy there.

The line-up’s off-road traction control system, which once was a bit patchy in its effectiveness, has gone through a couple of phases and it’s been recalibrated/tweaked over the years and it is much better now.

Of course, the MU-X also has Isuzu’s much-vaunted Rough Terrain mode (a form of early-acting off-road traction control which converts lost grip into torque for the wheels with grip), and it is smooth and effective, giving the driver better overall control in challenging terrain.

Some of this MU-X’s listed off-road angles appear shallower than the 3.0-litre MU-X’s – approach: 23.9 (3.0L = 29.2), departure: 26.4 (3.0L = 26.4) and ramp-over: 19.6 (3.0L = 23.1) – but, even if that is the case, it has very similar driving characteristics in low-speed, low-range four-wheel driving to its 3.0-litre stablemate.

If you drive with control and consideration, you shouldn't have any trouble tackling light to moderate 4WDing in this MU-X. It could even, if push comes to shove, handle challenges that may be considered by some to be on the edge of hard-core 4WDing – for a showroom-standard 4WD wagon anyway.

Ground clearance is 235mm and wading depth is 800mm, so there’s an adequate amount of clearance to work.

The MU-X – with a turning circle of 11.6m and a kerb weight of 2130kg (3.0L = 2185kg) – feels quite nimble on bush tracks.

This wagon’s wheel travel – how far the axle can move up and down relative to the chassis – has more than an adequate amount of flex, stretching its tyres close, if not all the way, to the dirt.

A noticeable trade-off is its 20-inch wheel-and-tyre combination, which is best suited to sealed surfaces and so are far from ideal for dirt-track touring. There’s an easy remedy, though. Buy a set of decent all-terrain tyres on 17- or 18-inch rims to replace the showroom-standard 265/50R20 Highway-Terrain tyres. If you are using your MU-X, avoid dropping pressures too much because you’ll risk sidewall pinches and punctures on these low-profile road tyres.

In terms of packability: the 2.2L MU-X has a listed payload of 670kg, whereas the 3.0L version offers 615kg.

The 2.2L MU-X can legally tow 750kg (unbraked trailer) and 3500kg (braked), so theoretically you can tow the same load as a 3.0-litre MU-X. But, as mentioned, the 2.2-litre engine feels underpowered, even in general day-to-day driving, so with a load and/or towing that’s an added burden.

For reference, the 2.2L MU-X has a listed gross vehicle mass of 2800kg and gross combined mass of 5900kg.

The MU-X has the maximum five-star ANCAP safety rating from testing in July 2022.

Standard safety features include eight airbags - dual front, dual front side, dual full-length curtain, front knee and centre (far-side) - and a comprehensive suite of driver-assist tech including AEB, adaptive cruise control, lane-keep assist, lane departure warning, a digital reversing camera and a tyre-pressure monitoring system.

Remember, the third-row seats do not have ISOFIX or top-tether points for child seats.

The ES300h is covered by Lexus’ four-year/100,000km warranty. Servicing is recommended every 15,000km or 12 months. There is no capped-price servicing scheme.

The MU-X has a six-year/150,000km warranty and seven years of roadside assistance. Unlimited km in the warranty would be welcome.

Service intervals are scheduled for every 12 months or 15,000km, whichever occurs soonest.

Capped price servicing covers the first five scheduled services for MY24 and later vehicle models (up to 5 years/75,000km – whichever occurs first) – at a flat price of $469 for each service.

Isuzu Ute Australia has a nationwide network of more than 160 dealer sites.