What's the difference?
The Toyota LandCruiser has joined the ranks of the new wave of hybrid vehicles with a powertrain that combines a 3.5-litre twin-turbo V6 petrol engine and an electric motor.
The 'i-Force Max' hybrid set-up, borrowed from the USA’s big ol’ Tundra, is aimed at improving the LandCruiser’s performance on- and off-road, rather than achieving greater fuel efficiency.
And with substantial increases in power (up 114kW to 341kW combined peak output) and torque (up 90Nm to 790Nm combined peak output) off-road enthusiasts are justifiably interested in how this unit’s on-paper impressiveness transfers into real-world efficacy.
The Cruiser has always been renowned for its prowess in the dirty stuff so will this hybrid powertrain make the classic off-road tourer a whole lot better?
Read on.
Jeep Australia's first plug-in hybrid, the Grand Cherokee 4xe, has arrived at a time when the company’s sales figures need a decent shot in the arm.
Though it’s seemingly spearheading a large and extra-large SUV hybrid push into the Aussie market, with the likes of a Toyota LandCruiser 300 Series hybrid on its way, the marque’s debut PHEV is only available here in the range-topping Summit Reserve spec, and only as a five-seater.
So, does the 4xe have enough of a jump on any large SUV hybrid rivals – including a rumoured but postponed Ford Everest hybrid – and is it enough to give the brand a much-needed boost?
Read on.
The i-Force Max hybrid set-up is aimed at improving performance rather than fuel efficiency, but its effectiveness in that respect is hard to fathom.
Increases in power and torque are welcome, of course, but the 3.3-litre twin-turbo V6 diesel Cruiser is just as good as the hybrid off-road and with a bigger fuel tank and greater driving range.
The hybrid LandCruiser will certainly appeal to some buyers, but the lion’s share of those interested in the 300 Series are looking to tow big loads and go long distances in comfort, which is why the diesel Cruiser at this stage is the better pick of the two powertrains.
A wise man* once said "Being first can sometimes feel like being wrong" and perhaps that's how it is with the 4xe, but at least Jeep Australia is giving the large SUV hybrid realm a good ol' try.
* Former CarsGuide Big Kohuna, Glen Knowles.
The company's first plug-in hybrid, the Grand Cherokee 4xe, is not perfect by anyone's standards, however, it is a definite move in the right direction.
It's a quiet and refined drive, it retains the brand's renowned 4WD capability, and even its hefty price-tag likely won't dissuade Jeep loyalists from giving it a go.
Nothing of note has changed onboard the Cruiser and the GR Sport variants are all the same, inside and out, no matter which powertrain you opt for.
And that’s fine because this is a good-looking rooster.
The GR Sport is listed as 4995mm long (with a 2850mm wheelbase), 1990mm wide and 1955mm high. It has a kerb weight of 2620kg.
This 300 Series looks much the same as it did at launch in 2021: big, chunky, imposing – like me if I was wearing high heels.
As a point of difference to other Cruisers, though, all GR Sports have variant-specific badging on the grille, front doors and rear tailgate.
Inside, it’s pretty much the same story which is borne out in how comfortable and practical it remains.
The LandCruiser’s cabin is a functional and comfortable space, and – no matter the spec level – it always has a sense of familiarity about it.
All seats in the GR Sport are leather-accented and comfortable and there are soft-touch surfaces throughout the interior.
The driver gets a heated and power-adjustable steering wheel and both occupants up front cop ventilated and heated, power-adjustable seats (with memory functions for the driver).
The GR Sport’s 12.3-inch colour touchscreen is easy to use, with wired Apple CarPlay and Android Auto, and there’s a wireless charging pad near the shifter.
Physical buttons and dials make operational life in the Cruiser much easier than if all functions were adjusted via on-screen controls, as is the case in some new vehicles.
There are USB and USB-C charging points up front.
There’s a cool box in the centre console and its lid can be opened from either side, so driver or passenger can access whatever is chilling within.
There’s also a powered sunroof if you’re that way inclined.
Beyond those features, there are the usual storage spaces, cupholders, receptacles in the doors for bigger bottles and other spaces for your bits and pieces.
The second-row seats are in a 40/20/40 split-folding configuration.
The GR Sport’s cargo space, when all five seats are in use, is a listed 910 litres behind the second row, somewhat impacted by the underfloor presence of the hybrid battery. That cargo area grows to 1842 litres when the second row is stowed away.
The rear cargo area of the hybrid has a 200V/1500W inverter, four tie-down points and of course, there's a full-size spare.
All in all, the Cruiser has the goods when it comes to practicality.
The Jeep Grand Cherokee Summit Reserve 4xe PHEV retains the regular model’s level of functionality but adds a reasonably classy touch to everything.
All seats offer adequate comfort, support and room.
There are plenty of storage spaces, cupholders etc, and charging points - two USB-A and two USB-C plus a 12V socket in the front and two USB-A and two USB-C plus a 230V point in the back.
Controls are generally easy enough to locate and operate although some buttons are positioned in awkward places – including drive-mode buttons under the steering wheel – and it sometimes takes a few finger-stabs at the multimedia touchscreen to get to where you want to go in the operating system.
In terms of packability, the rear cargo area has a listed 1067 litres of space, and, with the second row folded and out of the way, that space opens up to 2004 litres.
The five-seat Toyota LandCruiser 300 GR (Gazoo Racing) Sport Hybrid sits near the top of the 300 Series line-up and as such has a price-tag of $155,990, before on-road costs.
It's worth noting the GR Sport is also available with a 3.3-litre twin-turbo V6 diesel engine at $147,090, before on-roads.
Standard features include a 12.3-inch touchscreen multimedia system, a 14-speaker JBL audio system, as well as leather-accented seats, heated and ventilated power-adjustable front seats, 18-inch alloy wheels and more.
The i-Force Max hybrid set-up is the big attraction in this package and, largely because of that new powertrain, Cruiser buyers have to cop a heftier price – just under $9000 – over the diesel variants.
As the highest off-road grade in the Cruiser line-up, the GR Sport is kitted out with front, centre and rear diff locks, E-KDSS (essentially an electronic active swaybar), and the long-time bolted-on LandCruiser 4WD heritage.
Exterior paint options include the no-cost Glacier White or Ebony, or choose from Crystal Pearl, Arctic White, Graphite, Eclipse Black or Merlot Red, each of which costs $710.
Rivals such as the Nissan Patrol Warrior (priced from around the $110,000 mark) or Land Rover Defender (from $102,000) offer similar levels of standard features, but something like the Denza B8 plug-in hybrid (kicking off from around the $91,000 mark) has a packed standard features list for much less cash.
The five-seat Jeep Grand Cherokee Summit Reserve 4xe PHEV has a MSRP of $129,950 (excluding on-road costs).
Standard features include a 10.1-inch multimedia system (with Apple CarPlay and Android Auto), a 10.25-inch digital instrument cluster, 19-speaker audio system, quilted Palermo leather-trimmed seats, air suspension and 21-inch alloy wheels.
It also has a heated steering wheel, 12-way power-adjustable seats and four-way power lumbar adjustment with memory for driver and front passenger, driver and front passenger seat massage function and heated and ventilated seats (driver, front passenger and rear outboard passengers).
A Mode 2 charging cable is also included.
An 'Advanced Technology Group' pack is available as a $5500 option and that includes a head-up display, a 10.25-inch screen for the front passenger, wireless phone charger, and night vision camera.
Exterior paint options include 'Bright White', 'Diamond Black', 'Silver Zynith', 'Velvet Red', 'Baltic Grey', 'Rocky Mountain', 'Midnight Sky' and 'Hydro Blue'.
The big news here is the i-Force Max hybrid powertrain consisting of a 3.5-litre twin-turbo V6 petrol engine, an electric motor and a 10-speed automatic transmission.
Toyota reckons the “purpose‑built 1‑Motor Hybrid system” is designed for towing, off‑roading and heavy‑duty performance and that the additional electric motor “enhances power and responsiveness (compared with an equivalent diesel-only model), working seamlessly alongside the internal combustion engine”.
In general driving, it’s difficult, nigh on impossible, to discern the positive impact, if any, of the i-Force Max. But the 3.5-litre twin-turbo V6 petrol engine alone is impressive.
There’s no denying this Cruiser now benefits from a substantial increase in power (up 114kW to 341kW combined peak output) and torque (up 90Nm to 790Nm combined peak output) over the diesel Cruiser.
The Dakar Rally-inspired LC300 GR Sport’s 10-speed torque converter auto cleverly handles open-road driving and high- and low-range 4WDing, micro-managing power and torque to maintain a level-headed but involved driving experience.
The GR Sport has full-time, dual-range 4WD, a well-calibrated off-road traction control system, as well as front, rear and centre diff locks, so it’s almost unstoppable.
In this realm, the Cruiser holds its own against the likes of Nissan Patrol Warrior and Land Rover Defender.
The Jeep Grand Cherokee Summit Reserve 4xe PHEV has a 2.0-litre four-cylinder turbo-charged petrol engine, two electric motors (one on each axle) and a 17.3kWh battery.
Combined engine and electric outputs for power and torque are 280kW and 637Nm, respectively. The 4xe has it over any of its stablemates equipped with the 3.6-litre Pentastar V6 petrol engine because that yields 210kW and 344Nm.
The 4xe has an eight-speed automatic torque-converter transmission and regenerative braking.
Drive modes include 'Hybrid' (with combined engine and electric motor providing “maximum instant torque and impressive acceleration”, according to Jeep), 'Electric' (“zero emissions”) and 'eSave' (aims to save battery power).
There are a few options available when it comes time to charge the 4xe.
The 4xe vehicle has a Mode 2 charging cable so you can charge it at home in less than 10 hours, according to Jeep.
With a full charge, the 4xe has a claimed driving range, on electric charge alone, of 52km.
Jeep reckons a Mode 3 (wall box) single-phase electric vehicle charger will fully charge the 4xe in less than three hours.
If out and about and looking for a charge, a 4xe driver can use the onboard 'UConnect' system to locate an appropriate public charging station.
Official fuel consumption is 10.0L/100km on a combined (urban/extra-urban) cycle.
Our fuel consumption on this test was 13.6L/100km, which is substantially more than the claimed figure, but testing did, of course, include high- and low-range 4WDing.
This hybrid Cruiser has a 98-litre fuel tank (the diesel holds 110 litres) so, going by those fuel figures, you could reasonably expect a driving range of about 720km out of a full tank.
As mentioned, the 4xe has a listed electric-only driving range of 52km.
On our official test day, we drove just under 50km on a full electric charge and then the rest of the trip was courtesy of the good ol’ petrol engine.
Jeep's official figure for the combined cycle is just 3.2L/100km, but that's predicated on keeping the hybrid battery charged at all times. On fuel-only we recorded 11.6L/100km.
The 4xe has a 72-litre fuel tank (you need 95RON premium to fill it), so going by that on-test fuel-consumption figure, you could reasonably expect to get a driving range of about 620km out of a full tank.
Add an approximate electric range of about 50km on a full charge to that figure and you have a total estimated driving range of 670km.
Steering, now electric, is light but precise and this 4WD wagon feels highly manoeuvrable; with a turning circle of 11.8m it's quite nimble.
The new hybrid set-up is aimed at performance rather than fuel efficiency and as before the Cruiser remains a comfortable open-road cruiser, smoothly tapping into oodles of power and torque when required, all managed smoothly through the 10-speed auto.
This Cruiser’s on-road ride and handling are composed but it is soft rather than dynamic. Its suspension – double wishbone, independent at the front and live axle and multi-links at the rear with coils all-around – soaks up most irregularities in any road surface.
Its ventilated disc brakes front and rear brought the big Cruiser to a controlled stop during our emergency-braking scenarios on test.
When it comes to off-roading, this LandCruiser benefits from handy 4WD gear some other Cruiser grades miss out on, namely Toyota’s swaybar-disconnect equivalent E-KDSS (electronic-Kinetic Dynamic Suspension System), front and rear differential locks, and adaptive variable suspension.
The E-KDSS set-up acts like an electronic active swaybar, adjusting tension on the front and rear sway bars to suit the terrain and driving conditions.
While it’s a high-value addition on-road – tightening them for better body control at higher speeds on sealed surfaces – it gives the vehicle a lot more flexibility in terms of wheel articulation off-road, offering full stretch on the axles when tackling off-road scenarios.
This hybrid 300 Series tackled all obstacles at our unofficial testing and proving ground without any strife; its top-tier power and torque levels are consistently delivered across a broad rev range and that 10-speed auto is never caught out, scrambling through ratios to find the sweet spot.
High- and low-range gearing are solid in the 300 Series, and the suite of driver assist tech, aimed at making off-road driving easier and safer, is comprehensive: the traction control system has been further fine-tuned over previous versions, and is now even more precise in application.
The 300’s multi-terrain select system gives you the option of cycling through driving modes – for example, Sand, Snow, Mud, Rocks and Dirt – to suit the terrain. When engaged, the modes adjust vehicle systems, throttle, engine output etc to best suit the conditions, driving style and terrain.
Off-road measurements and angles are on point for a large 4WD wagon. Ground clearance is 245mm, wading depth is 700mm, and approach, ramp-over and departure angles are 32, 25 and 25 degrees, respectively.
Besides that, whether it’s being able to access 790Nm of useable torque across a broad rev range, or relying on the LC300’s well-calibrated traction control, or if you are engaging front, rear and centre diff locks, this Cruiser is an almost unstoppable off-roader in the right hands.
Even without the diff locks engaged, this 300 conquers every obstacle you drive it at, through and over.
If you plan to use this 4WD wagon for anything more difficult than dry-track 4WDing in good weather then get more aggressive all-terrain tyres to replace the standard Bridgestone Dueler all-terrains (265/65 R18).
The GR Sport’s full-size spare is mounted to the underbody but it doesn’t impact running clearance.
The 300 Series can legally tow 750kg unbraked, and 3500kg braked.
Here, the Cruiser remains true to its old-school spirit – albeit with a tech edge – in the same way the Nissan Patrol Warrior does, while something like the Land Rover Defender is more spaceship than scrub explorer.
We’re all time-poor, right? So, why should I take up your time and rattle on about the 4xe for a thousand words when I can get the essence of it across to you, the reader, in a few sentences? Call me, Mr Thoughtful.
This is generally a big, quiet and refined, easy-steering large SUV, but it feels bulky at times and tends to be quite fussy on irregular surfaces, exhibiting a jittery ride on even brief sections of light corrugations on dirt tracks.
The 4xe’s PHEV set-up is smooth and highly responsive on-road and you can switch between the aforementioned drive modes to suit the circumstance.
Driving range on electric only is listed as 52km. I only recorded a total distance of just under 50km, and it’s a very quiet and smooth drive while relying on electric power.
It regenerates power rather quickly down big hills and via braking, but we’d exhausted all electric charge by the time we’d reached our 4WD test track.
As expected, this Grand Cherokee tackled every off-road challenge without any strife.
The air suspension, set to full off-road height, is a bonus.
Our 4WD test track consists of difficult set-pieces, including one small steep rocky hill that I’ve seen heavily modified vehicles struggle to conquer and, to the Jeep’s credit, it climbed the incline, no sweat.
The 4xe’s efforts were only ever hampered by its 'all-season' Continental CrossContact tyres (275/45R21) which are much better suited to blacktop driving and the fact the 4xe costs upwards of $129,950 and I didn’t want to risk any damage to it.
The 4xe has a listed wading depth of 610mm but our test track was dry so I never had the chance to do any water crossings.
The Grand Cherokee has a solid enough rep as a towing vehicle but, take note, the 4xe is rated to tow 2722kg.
All of the 300 Series line-up, except the GR Sport, have the maximum five-star ANCAP safety rating from testing in January 2022.
Safety gear includes 10 airbags, two ISOFIX anchor points, as well as AEB with pedestrian and daytime cyclist detection, active cruise control (all-speed), lane departure alert (with brake to steer), road sign assist (speed signs only), trailer sway control and more.
Off-road driver-assist tech includes crawl control, downhill assist, hill-start assist, multi-terrain select, multi-terrain monitor with panoramic view and active traction control.
The Jeep Grand Cherokee Summit Reserve 4xe PHEV has the maximum five-star ANCAP safety rating from assessment this year.
Safety gear includes AEB with pedestrian detection, blind-spot monitoring with rear cross-traffic alert, adaptive cruise control, lane-keep assist, driver monitoring, traffic sign recognition, intersection collision assist, and a surround-view parking camera.
The Summit Reserve spec brings with it 'ParkSense' parallel and perpendicular park assist and (low-level autonomous) 'Active Driving Assist'.
It has eight airbags including front, side, and knee (for driver and front passenger), sides (for second-row passengers) and full curtain airbags.
The hybrid Cruiser is covered by Toyota’s five year/unlimited km warranty.
Servicing is scheduled for every 12 months or 20,000km (whichever occurs soonest) and costs are, at time of writing, $450 per appointment for the first five years or 100,000km (whichever occurs first).
Toyota Australia has more than 300 authorised service centres around the country.
The Jeep Grand Cherokee Summit Reserve 4xe PHEV has a five-year/100,000km warranty and a lifetime roadside assist service.
Servicing is set at 12-month/12,000km intervals and capped price servicing keeps what you pay for each appointment at $399 for the first five.