2023 Isuzu NPR vs 2018 Lexus LX450D

What's the difference?

Driving a truck of this size has never been easier than it is with these new Isuzus. Once you’ve worked out how to judge gaps in traffic and have acclimatised to the bulk of a light truck, it’s all pretty straight-forward.

The greater levels of connectivity and safety in this generation of trucks is a big leap on the OH and S front, and there’s no trade-off in terms of the traditional practicalities trucks like these offer.

Our advice would be to option up the suspension driver’s seat and, where possible, look into the independent front suspension, too, as this gives the vehicle a more car-like feel in terms of both steering and ride quality.

Meantime, the option of the ready-to-work packages makes the whole idea of getting into a light truck all the more simple, fuss-free and financially attractive. Which are all things fleet managers around the world can agree on.

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

If you're in the market for the best-of-the-best SUV wagon, then you could do a lot of worse than get in a LX 450d. It looks good, is packed with standard features and is supremely comfortable. The 450d also has an suite of safety tech worthy of the hefty price-tag and it works well as a daily driver and has plenty of touring potential, even though we doubt it'll ever get anywhere near achieving those claimed fuel-consumption figures with real-world usage. Sure, you could instead climb in a second-hand, well-looked-after, never-been-off-road LandCruiser 200 Series and spend the money you save, by not buying this new Lexus, on aftermarket and camping gear, camping fees and also hiring a team of four people to follow you on mopeds everywhere and constantly tell you what a great driver you are – but that's not the point with vehicles of this ilk. They may not be aimed at hard-core off-roading buyers, but they are cushy, classy, and cityified – and, in that respect, they're incredibly well-built for purpose.

While it’s generally agreed that trucks trail cars and utes in terms of safety and connectivity, the latest N-Series trucks are aimed at reversing that trend. Lots of active safety gear has been added to the N-Series in the most recent upgrade and that’s led to a much safer vehicle.

The ability to connect Apple CarPlay and Android devices is also a major bonus this time around.

The other element unique to Isuzu is the ability for customers to order a fully-finished truck, rather than order the basic package from the truck manufacturer and then finding a third-party supplier for the body they need.

Isuzu calls it its ready-to-work option and it spans various types of bodies including a service body, conventional drop-side tray, enclosed van and even a tipper body. As an off-the-shelf alternative to the traditional way of ordering and specifying a truck, it’s a surprise nobody else has done it, although Isuzu’s volumes definitely play a part.

It has that signature Lexus jagged space-age grille, chunky shoulders and beefy back end that suit a luxury SUV dreamed up by folks craving a significant presence and plenty of attention for their product.

Bulky side-steps, an upswept raked profile, scalloped side panels and moon roof all top what is a cool combination of eye-friendly design factors. It's a slick mix of low-level cool and high-end style.

Take a look for yourself and make up your own mind whether you like it or not.

Because they’re made to work first and foremost, the cabins of these 4.5-tonne trucks are roomy and offer plenty of storage space for clipboards, receipt books, Eskies and more.

As a workspace rather than simple transport, plenty of thought has gone into how they function for an eight-hour shift, too, and options like suspension driver’s seats will make a difference.

They’re a bit of a climb up, though, so getting in and out requires at least some measure of dexterity. But once you are in, the view through that huge, panoramic windscreen is fabulous and if you like the seat-height advantage of an SUV, you’ll love an N-Series truck.

Beyond that, the quality of the interior plastics still trails the car and ute world by a margin, and the hard plastic surfaces aren’t great to look at or engage with. By trucks standards, though, they’re on the money.

It certainly feels like Lexus designers and engineers have maximised every last millimetre of interior space; there is stacks of room inside with plenty of real-world usable storage spaces, including cup-holders, door pockets and spots for keys, phones and other stuff.

The heated steering wheel, stylish analogue clock, wireless charger, Lexus climate concierge (coordinating all four-zone temperature controls), cavernous centre-console cooler box, and rear-seat entertainment system are all nice touches but pretty much assumed at price-points lower than this one.

The 12.3-inch high-definition media touchscreen is clear and bright and easy to operate, but the Remote Touch Interface, the control near the shifter, is very annoying to use. The toggle/selector is too sensitive, skipping past your actual choice over and over again, while you try to manipulate it just so, so it lands on the option you wanted.

The second-row seating is plush and the seat sections are easily slid forward and tilted.

Lexus claims the 450d offers 909 litres of cargo space if there are five occupants; and 1431 litres if there are only two occupants. If you have some casual weekend touring in mind, with a spot of camping, then this Lexus should cope with your gear, no worries.

Price as tested on our five-seat LX 450d is $136,000. The base RRP is $134,500 and our Lexus had premium paint (Sonic Quartz), which adds $1500; no other options were fitted. 

It is absolutely packed to the rafters with high-quality stuff, which is no surprise really because, at this price, you’d expect nothing less. Standard features include a 12.3-inch high-definition screen with nine-speaker, seven-channel audio system (with “digital sound processing”), satellite navigation, and four-zone climate control air-conditioning with climate concierge function and nanoe technology (claimed to purify the air and moisturise hair and skin, according to Lexus). It also has heated front seats, leather-accented trim, a wireless phone charger, cool box, rear-door sunshades, 20-inch alloy wheels with 285/50R tyres, tyre-pressure warning, LED headlamps, daytime running lamps and sequential turn signals.

There are seven exterior colours and two leather-accented interiors from which to choose.

The LX 450d does not have any enhancement packs.

The base engine for the N-Series trucks is a 3.0-litre turbo-diesel with 110kW of power and 375Nm of torque. Available across the short and mid-wheelbase N-Series models, the 3.0-litre engine is more or less the same engine as seen in the Isuzu D-Max ute range.

As such, it has a good reputation for durability and although there are some turbocharger and tuning changes compared with the D-Max, the basic engine is very similar.

There’s also a much more heavy-duty, truck-like engine option. That is also a four-cylinder unit, but with a massive 5.2 litres of capacity, it’s a real statement of intent. Although power is only marginally more than the 3.0-litre engine, at 114kW, torque is the big winner with 419Nm at just 1600rpm.

Typically fitted to N-Series models with the wider cabin, the 5.2-litre engine also shifts the GCM up a gear to 9000kg from 8000kg. The braked towing limit of the bigger-engined truck also jumps to 4500kg (from 4000kg).

The 3.0L trucks are fitted with either a conventional five-speed manual gearbox or a robotised six-speed manual (which operates like an automatic and is driven with just two pedals). The bigger engined versions have a choice of six-speed manual or six-speed robotised manual.

The Lexus LX 450d has the LandCruiser's 4.5-litre twin-turbo direct-injection V8 engine, producing 200kW@3600rpm and 650Nm@1600-2800rpm. All of that power and torque arrives evenly and smoothly, helped no end by a slick six-speed sequential-shift transmission.

It has a full-time 4WD system, dual-range transfer case and off-road tech that includes multi-terrain anti-skid brakes, crawl control and a four-camera multi-terrain monitoring system with back guide and panoramic view. 

The first thing to know is that vehicles in this weight class – unlike passenger cars and dual-cab utes - don’t have to undergo an official government test for fuel economy. So there’s no simple comparison to be made here.

Also, there are simply too many variables in truck fuel economy to make definitive statements. Unlike cars which are usually loaded to within a few hundred kilograms trip-to-trip, a truck’s mass can vary enormously from empty to fully loaded (and with what) and those circumstances will vary nearly every day.

Then there’s the issue of what body is fitted to the chassis. Obviously, a high van body will contribute a lot more drag at highway speeds than a low-line tray body.

With all that in mind, it’s impossible to generalise although you can expect fuel economy to increase the more you put on board or hitch to the tow-bar.

It’s also worth mentioning that Isuzu’s N-Series engines meet Euro 5 emissions standard for diesel engines. N-Series trucks have fuel tanks ranging from 75 to 100 litres.

Lexus claims the LX 450d will achieve a 9.5L/100km figure from combined-cycle driving (that's 4.9L/100km more frugal than the LX 570 is capable of). Lexus reckons, based on that figure, that the diesel LX has a potential range of almost 1000km on a full tank (93 litres) of fuel.

We recorded 12.7L/100km during daily driving (city and suburbs) and 13.5L/100km with some light off-roading thrown into the drive mix.

Although the sheer size of the Isuzu can be a bit daunting at first, once you’re in with the excellent side mirrors adjusted, it’s vastly less confronting.

The view to the front and sides is brilliant thanks to the deep glass and the high-and-mighty seating position is terrific for finding the corners of the vehicle, too.

You still need to understand that the length of the truck imposes some unconventional lines through corners, and leaving plenty of space between yourself and the insides of corners soon becomes second nature.

The seating position itself offers up a classic truck-like set-up with an upright seat-back and an almost flat steering wheel. It sounds terrible to car drivers but it’s not. It’s actually very comfortable for long stints at the helm.

Ride quality is compromised to an extent by the N-Series’ role as a hauler (and spring rates to suit that role) but the optional independent front suspension makes it a lot more comfy.

And even with the more traditional front suspension fitted, the fast steering makes the truck a lot more manoeuvrable than you might have imagined.

The biggest gripe for us was the transmission, specifically, the optional robotised manual six-speed. This unit really does hark back to the very early days of the technology (before the dual-clutch layout arrived) and the shifts are slow and stilted with a distinct lurch as the transmission swaps gears and engages the clutch.

You can improve things by lifting off the accelerator to initiate each shift, but fundamentally, modern dual-clutch transmissions do a much better job.

The other issue will be for drivers who like to left-foot brake in any vehicle with two pedals.

Unfortunately for them, the Isuzu places both pedals to the right of the big, almost vertical steering column with neatly cleaves the driver’s footwell in two, making left-foot braking impossible.

It’s supremely comfortable and very quiet, wth that customary cocoon-like enclosed sensation that you only ever truly get in a vehicle this far away from cheap.

The 450d is 5080mm long, 1980mm wide and 1865mm high. It has a 11.8m turning circle. It has an official kerb weight listed as between 2510kg and 2740kg.

For something with so many kegs onboard, it’s capable of punching off the mark with a respectable bit of pace; handy for city-street bursts to slip through traffic gaps.

It never feels cumbersome; it actually feels quite light on its toes. In fact this Lexus tends to be more than a little bit floaty at times. You can select different suspension settings – comfort, normal or sport – to suit your preference.

Visibility is generous all-round with clear sightlines in all directions; besides, the reversing monitor with 360-degree view helps if your views are hindered.

Steering is generally active but it does exhibit quite a lot of under-steer on twisting country roads. It has paddle-shifters if you’re that inclined.

The LX 450d rides on 20-inch alloys and 20-inch Dunlop Grandtrak PT2As (285/50F20 112V) – a combination which is fine for bitumen-based outings, but we’d ditch it for rubber with more sidewall to allow for greater freedom to adjust tyre pressures to suit rough terrain.

The LX 450d has a five-star ANCAP rating. It has the latest-generation Lexus pre-collision safety system with pedestrian detection, and 10 airbags. Other standard safety gear includes radar active cruise control, lane-departure warning, adaptive high-beam system, blind-spot monitor and rear cross-traffic alert, as well as clearance and back sonar, and reversing monitor with 360-degree view. 

Because trucks are designed to be used day in, day out, the warranty reflects that. In this case, it’s six years and 250,000km of factory cover for any two-wheel drive N-Series.

The four-wheel-drive variants are, due to the tasks they’re usually put to, covered for three years or 150,000km.

Isuzu also provides six years of roadside assistance. There’s also capped-price servicing on a pay-up-front basis although the cost varies between models. 

Warranty is 4 yrs/100,000km. Service intervals with indicative pricing (exc GST) are: six months/10,000km: complimentary; 12 months/20,000km: $535.56; 18 months/30,000km: $598.11; 24 months/40,000km: $800.32; 30 months/50,000km: $502.44; 36 months/60,000km: $676.23.