Kgm Musso vs Lexus Rx450H+

What's the difference?

The KGM Musso Advance is a large 4WD ute offering a decent amount of appeal for the price and it makes a lot of sense in XLV form.

It’s generally nice to drive, it’s comfortable and capable for a ute and – as with the Rexton – the Musso is another clear sign that KGM continues to improve its vehicles, albeit incrementally in some cases, in terms of quality and functionality.

The new Lexus RX450h+ Sports Luxury is packed with a wealth of premium features and strikes a solid balance between refinement and practicality. There are enough thoughtful touches that make everyday driving a little easier.

You’ll get the most out of the plug-in hybrid powertrain if you’re able to charge it regularly; ideally every day. That might not always be practical for busy people on the go, but overall, the RX450h+ manages to blend efficiency with Lexus’ signature comfort and quality.

The Musso is based on its SUV stablemate, the Rexton. It’s a body-on-frame 4WD ute, available only as a dual-cab, and its appearance is inoffensively pleasant.

Styling changes to the Advance include a black grille, black 18-inch alloy wheels, HID headlights (on short and XLV grades), and rear privacy tint.

It also has a black leather-look interior with black leather-look seats.

The Musso’s interior offers plenty of space for the driver and passengers and is neat and well laid out.

Build quality and fit and finish are impressive with a mix of durable plastic and soft-touch surfaces throughout including a leather steering wheel and leather-look seats in the Advance.

The RX isn’t breaking new ground with its plug-in hybrid design, but it still delivers that signature Lexus understated refinement.

The strong, flowing body lines, 21-inch alloy wheels and updated 'spindle grille' all give it presence without screaming for attention.

And in a segment where boxy and bulky designs tend to dominate, the RX’s swoopy silhouette helps it stand apart in all the right ways.

Inside, the cabin feels considered and luxurious. There's a heavy use of premium materials, including the leather and suede upholstery, plush soft-touch surfaces and the big, crisp displays that make the space feel modern and high-end.

The panoramic sunroof brings in loads of natural light, too, which is especially welcome given the dark headliner that might otherwise feel a little heavy.

If I have one gripe, it’s the thin steering wheel, which doesn’t quite match the otherwise solid, tactile feel of the rest of the interior. But overall, the cabin is a space that feels luxurious and well-executed. It's quietly confident, just like the RX.

There is the expected array of storage spots (glove box, door pockets etc), cupholders (two to the rear of the auto shifter) and charge points (two USB-C ports and a 12-volt plug point for driver and front passenger).

The seats are comfortable and supportive and, in general, KGM has maximised space in the cabin, yielding plenty of shoulder and legroom for driver and passengers.

The 12.3-inch touchscreen multimedia system works reasonably well although you do have to cycle through numerous menus and sub-menus to change some settings and I did have to try several times to pair my phone to it, so overall functionality is clunky.

Rear-seat passengers have access to directional air vents, but there are smart-device charge points.

The tub size is as follows: 1600mm long in the XLV (1300mm in the standard Musso), 1570mm wide (1100mm between wheel-arches) and 570mm deep. The tub has a plastic tub liner and four tie-down points.

For a direct comparison of dimensions: the standard Musso is 5095mm long with a 3100mm wheelbase while the XLV is 5405mm with a 3210mm wheelbase; the standard Musso is 1950mm wide and 1870mm high (the XLV is 1885mm). For reference, the Ford Ranger XLT dual-cab ute is 5406mm long (including rear bumper and tow bar receiver) with a 3270mm wheelbase.

The difference in dimensions between a standard Musso and the XLV version also means a difference in off-road angles so approach is 22.8° / 25° (XLV), departure is 23.4° / 20° (XLV) and rampover is 23° / 20° (XLV).

Minimum ground clearance is 215mm in a standard Musso and 220mm in the XLV, so the Musso XLV does stand taller off the ground than its regular stablemate.

Kerb weight is listed as 2090kg for the standard Musso and 2100kg for the XLV. Turning circle is 11.8m for the standard Musso and 12.2m for the XLV.

The RX cabin is thoughtfully laid out and impressively practical, with a premium feel that doesn’t come at the cost of everyday usability.

Up front, there’s plenty of space for driver and passenger, yet the stepped dash design brings a sense of intimacy. The electric front seats are seriously comfortable, with four-way lumbar support and extra adjustment functions that make this an easy choice for long drives.

Storage options are generous, too. There’s a clever dual-opening centre console, large glove box, multiple phone-sized shelves, map pockets and a couple of cup- and drink holders in each row.

Charging is taken care of by four USB-C ports, one USB-A port and a wireless charging pad.

Tech is up-to-date and well-integrated. The upgraded 14-inch media display looks crisp, supports wireless Apple CarPlay and Android Auto, and is paired with a revamped 12.3-inch digital instrument cluster and a colour head-up display.

The cluster’s new layout is modern and much easier to read than the previous offering. The digital rear view mirror also earns its keep when the cabin’s packed with passengers or gear.

One of my favourite touches? The seat controls on the side of the front passenger seat. It makes quick work of moving the seat forward, especially helpful when you’ve got a kid clambering in with a school bag full of projects.

Access to the rear row is easy, but the stadium-style seating, where you're perched noticeably higher than those in the front, won’t be for everyone.

That said, the rear seats are plush and padded, though they lack side bolsters, which rear passengers might notice during cornering.

Legroom is generous and the hardened kickplates are a dream to clean when your child’s treating the seatbacks like a climbing wall.

My eight-year old gives the back seat a glowing review, thanks to its creature comforts, including rear climate control, directional air vents, seat heating/ventilation on the outboard seats, two USB-C ports and retractable sun-blinds, which are a crowd favourite in our household.

There are three top-tether anchor points, and the bench is wide enough to fit three child seats, though bulky booster seats might be tricky due to the raised seating height.

At the back, the boot is well set up for families, offering electrically folding rear seats, a 12-volt socket, flat loading floor, and a hands-free powered tailgate.

Under the floor, there’s a small compartment for your charging cables (Lexus throws in two!) and a usable 612L of capacity when all seats are in use. One downside, though, is the lack of a spare tyre as you just get a tyre repair/inflation kit.

There are four variants in the RX range, and we’re testing the 450h+ Sports Luxury AWD, which sits just below the flagship and packs in plenty of premium kit for its $123,500, before on-road costs, price tag.

That makes it slightly more affordable than its main PHEV rivals; the BMW X5 xDrive50e (from $125,885 MSRP) and the Volvo XC90 Ultra (from $124,466 MSRP).

The Volvo does offer seven seats to the Lexus’ five, which may matter for larger families, and both rivals also outdo the RX on electric-only driving range - 65km in the RX compared with 77km in the Volvo XC90 and a generous 101km in the BMW X5.

Still, the RX fights back with a seriously stacked features list. Highlights include a panoramic sunroof, 10-way powered front seats with heating and ventilation, electrically folding rear seats (also heated and ventilated in the outboard positions), and a heated, power-adjustable steering wheel. Sound is taken care of by a premium 21-speaker Mark Levinson surround system.

Technology has had a solid upgrade with the 14-inch touchscreen multimedia display, 12.3-inch digital instrument cluster, digital rearview mirror, colour head-up display, live traffic navigation, wireless Apple CarPlay and Android Auto, 4G connectivity, four USB-C ports, one USB-A port and a fast wireless charging pad.

There’s also access to the 'Lexus Connected Services' app, allowing you to remotely lock or unlock the vehicle, pre-set the cabin temperature via three-zone climate control, configure driver profiles and even use your phone as a digital key.

Practical features include keyless entry and start, rain-sensing wipers, dusk-sensing LED headlights, rear sun-blinds, intelligent seatbelt reminders for the first two rows, a child presence alert and a hands-free powered tailgate. However, due to the plug-in hybrid system there’s no spare tyre, just a tyre repair kit.

The KGM Musso Advance with the XLV Pack has a 2.2-litre four-cylinder turbo-diesel engine – producing 133kW at 4000rpm and 420Nm from at 1600-2600rpm – it gets an extra 20Nm over the shorter version's 400Nm from 1400 to 2800rpm.

It has a six-speed automatic transmission, part-time 4x4 with high and low range, and an auto-locking rear differential.

This is a sluggish combination producing a generally lacklustre performance and the powertrain is not particularly efficient but, having said that, the Aisin auto is a reliable, well-proven transmission and the Musso ultimately does reasonably well with what it has.

The 4WD mechanicals and driver-assist tech actually work better in this package than they do in the Musso’s stablemate, the Rexton.

Under the bonnet the RX450h+ Sports Luxury runs a plug-in hybrid powertrain that pairs a 2.5-litre four-cylinder petrol engine with a CVT auto and dual electric motors - one on each axle. Together, they produce a total of 227kW of power, though Lexus doesn’t quote a combined torque figure.

Still, it’s quick off the mark for a large SUV, with a 0-100km/h time of 6.5 seconds. There’s more than enough grunt for daily driving and overtaking, even if it doesn’t quite match the outright power of its key PHEV rivals.

Official fuel consumption for the Musso Advance with the XLV treatment is 9.0L/100km.

On this test, I recorded 11L/100km, but on the test I spent a chunk of time in 4WD high and low range.

The Musso has a 75-litre fuel tank, so going by my on test fuel-consumption figures, from a full tank, you could reasonably expect a driving range of about 681km.

But it is worth noting that I didn't have a lot of weight on board during this test – it was just me and the vehicle recovery gear – and you will have a lot more weight on board: your family or your mates, pets, camping gear, surfboards, kayaks, the whole kit and caboodle.

The plug-in hybrid system brings solid efficiency, with claimed fuel use of just 1.3L/100km. In real-world conditions (mostly urban driving with regular recharging) I managed a respectable 4.8L/100km, which makes a strong case for the hybrid set-up.

The fuel tank holds 55 litres and it's worth noting Lexus recommends using a minimum of 95 RON unleaded petrol to fill it.

Using our real-world economy figure you can expect a range in excess of 1100km between fills.

The RX450h+ is fitted with a relatively small 18.1kWh lithium-ion battery, supporting an NEDC electric-only range of up to 65km.

While that’s fine for short daily trips, it’s shorter than you'd ideally want in a family SUV of this size and it lags behind rivals like the BMW X5 and Volvo XC90 in this department.

Charging is simple enough. The RX uses a Type 2 charging port and accepts up to 7.0kW on AC power, which means a full charge takes around 7.5 hours, perfect for overnight top-ups. Lexus also includes an at-home charging cable and second adapter cable as standard, which is a thoughtful touch.

On-road, the longer-wheelbase Musso is composed and comfortable with well-subdued NVH (noise, vibration and harshness) levels adding to an impressive overall sense of low-key refinement.

The engine and auto work reasonably well together, but as mentioned earlier this is a sluggish unit and it takes some urging to get it going. Pronounced lag from stand-still can be disconcerting, especially when you need plenty of zip to punch you into the traffic flow.

This ute’s suspension – double-wishbone, coil springs and stabiliser bar at the front, multi-link with coil springs at the rear – is firm, mostly controlled, but the Musso becomes jittery on irregular surfaces, such as lumpy back-roads bitumen and mildly corrugated dirt tracks.

One noteworthy annoyance: the Musso does not have adaptive cruise control.

Despite that, the Musso is actually quite reasonable for general driving duties.

As a 4WD, the Musso actually performs pretty well. It is a long wheelbase ute, so you have to drive it with consideration because you have to take into account its shallow off-road angles – approach, departure and ramp over – and it has quite a large overhang of tub behind the rear axle.

It has an auto locking rear diff, which is clunky in operation and I’d prefer a switchable diff-lock, which you could select whenever you want to, but otherwise it's effective in a workman-like kind of fashion.

Steering is not too shabby, it has a nice weight to it in all situations, whether you are on the bitumen or a dirt track. Turning circle on this long-wheelbase ute is 12.2m, but it feels nimble to steer around on the tracks.

The Musso has part-time four-wheel drive and high and low range 4WD gearing. It doesn't have a lot of power and torque in terms of the contemporary dual-cab ute market, but it does fine with what it does have; 420Nm in the XLV Musso gives it that little bit of extra punch over the standard Musso (400Nm) and that torque is available across a decent spread of revs.

If you intend to use your Musso as an off-road adventure vehicle or a weekend holiday machine, then it's handy to know that it's unbraked towing capacity is 750kg and its braked towing capacity is 3500kg and that's on par with the dual-cab ute market.

In terms of tyres, it’s the same story here as with most standard 4WDs – the Musso’s Nexen NPriz RH7 (255/60R18 108H) are not well-suited to anything other than light off-roading. The easy fix? Replace those tyres with some decent all-terrain tyres.

Payload is a listed 880kg (790kg in the standard Advance), GVM is 2980kg and GCM is 6480kg.

The RX450h+ delivers power that’s pert and prompt, with genuine bursts of acceleration that make driving fun. It’s always ready to go and there's no lag in stop-start traffic - which gives it a lively, dynamic feel around town.

The transition between petrol and electric power is seamless; you hardly notice the switch, which makes for a smooth, refined driving experience. The cabin is impressively quiet, even on the highway, making long trips comfortable and peaceful.

Regenerative braking isn’t adjustable and is subtle enough that many won’t notice it which is likely a plus for fans of traditional internal combustion engines who are making the PHEV leap.

The adaptive variable suspension adds a sporty edge to handling, letting you confidently take corners at speed. There’s some body roll but the RX never feels top-heavy or unsettled.

The steering carries the weight of the SUV but remains well-balanced and responsive. Overall, it’s a well-tuned machine that’s a pleasure to drive.

Maneuverability is a strong suit, too, thanks to a tight 11.8-metre turning circle and a clear, easy-to-use 360-degree camera system. Parking is easy-as-pie, which a lot of drivers will appreciate.

The RX earned a maximum five-star ANCAP safety rating in 2022, scoring highly across all protection categories: 90 per cent for adult protection, 89 per cent for child protection, 89 per cent for vulnerable road users, and 93 per cent for safety assist systems.

Standard safety gear includes eight airbags (dual front, front side, curtains, front centre, and driver’s knee) plus a comprehensive suite of driver aids. Standout features include emergency call functionality, child detection alert, side exit assist, front and rear collision warnings, park assist and emergency steering assist.

Additional tech covers blind-spot monitoring, driver attention monitoring, tyre pressure monitoring, daytime running lights, LED cornering lights, rear cross-traffic alert, lane departure alert, lane keeping assist, traffic sign recognition, and intelligent seatbelt warnings for the front two rows.

Visibility and parking are enhanced by a 360-degree camera system and front/rear parking sensors, while adaptive cruise control adds comfort on longer drives.

The rear seats have two ISOFIX mounts plus three top tether anchors, accommodating child seats safely. Autonomous emergency braking is active from 5.0 to 80km/h for pedestrians, cyclists, and backover and up to 180 km/h for cars.

The MY26 Musso range is covered by a seven-year/unlimited kilometre new-vehicle warranty, and five years of roadside assistance.

A service is required every 12 months or 15,000km, whichever occurs soonest with cost per service either $418 or $522.

Note, KGM considers off-roading as an example of a “severe driving condition” and so your Musso may require more frequent servicing.

KGM Australia has more than 50 dealerships across the country with a decent spread across metro and regional areas. Rextons can be serviced at those dealers or at approved workshops.

The RX comes with a five-year, unlimited-kilometre warranty, which matches its key rivals but isn’t exactly class-leading by today’s standards.

Servicing is handled via a capped-price program, with each service costing $695. The intervals are well spaced at every 12 months or 15,000km, whichever comes first.

This Sports Luxury grade also includes a three-year complimentary 'Lexus Encore' membership, granting access to a handy phone app and member benefits at partners like Westfield and Ampol. On top of that, you get 24/7 roadside assistance for added peace of mind.