Lexus LS500H (hybrid) vs Lexus RX350H

What's the difference?

One might be surprised to learn that, without having driven the latest S-Class, rival large luxury sedans have struggled to juggle comfort and refinement with agility and speed. Even in this modern age of adaptive dampers and air suspension. The Germans, in particular, seem to struggle at times.

The latest Lexus LS, however, walks the line with impressive confidence and poise, prioritising the former yet without dropping the ball with the latter. Just keep in mind that the 500h Sports Luxury manages the balance best.

The bar may just about be raised with the bestselling Stuttgart's arrival from March, but even then, with its extensive and complete specification, outstanding hybrid efficiency/performance combination and remarkable build quality and presentation, Japan's master luxury sedan deserves to find more buyers in this country.

Well done, Lexus.

It’s hard to look past the value equation of the RX350h Luxury 2WD when comparing it to almost all its competitors. The pricing is on point, but there are some features missing.

However, there are very few (if any) rivals with a true hybrid powertrain (sorry, mild hybrids do not count), so the RX will capture buyers looking for environmental credentials and efficiency without going full EV.

The drive experience is much better than before and it’s all wrapped up in a very stylish package. The Lexus RX should not be ignored.

The XF50 series is a long and imposing machine, but is also arguably the most Toyota-looking LS in history, sharing design cues with most larger sedans the company builds – and yes, even the Camry. This is a departure from the Mercedes aping ‘90s and '00 generations. If the latest S-Class can look like a 200 per cent enlarged CLA, why not?

The most obvious – and pleasing – changes are realised when the headlights are switched on, revealing the BladeScan tech. In the F Sport, the redesigned bumpers' air intakes are noticeably larger and have jazzier pattern inserts, as part of a broader exercise in differentiating the grades with what's perceived as ‘sportier' elements throughout the car. The divisive ‘Spindle' grille theme remains.

Out back – arguably the most Toyota-esque part of the LS – are piano black tail-light inserts to differentiate new from old.

If Lexus is about presenting nuanced styling evolution as to not spook the demographic, then the MY21 flagship sedan succeeds brilliantly.

Across its five generations, the RX has held significant visual appeal - especially the still-handsome second-gen version that was the first RX sold Down Under. The first-gen model skipped Australia.

The new model that launched in 2023 is a clear evolution of the car that came before, but it’s been softened and sharpened in the right areas, giving it one of the most appealing designs in its segment.

The proportions and design elements like the squat stance, unique C-pillar treatment, slimline headlights and nicely sloping roofline give it a sporty look.

In fact, I reckon it might be the best looking Lexus available today - not including the jaw-droppingly beautiful LC coupe and convertible, of course.

The interior is modern and feels like an evolution of Lexus’ previous cabin design - but elevated. The gloss black section of the dash helps here.

Levels built into the dash break up the bulk, but the interior is very grey. It could do with a dash of colour.

The synthetic leather seat trim doesn’t look premium. If you want a more expensive feeling RX, you need to pay more for a higher grade.

This is more like it.

While nowhere near the apex of striking interior design, with a dashboard that – again – is quite clearly from the contemporary Toyota way of thinking, the LS is massive inside, heaving with standard luxury and obsessively crafted in a few key touchpoint areas.

The brand makes a big noise about the floating door-sited armrests and their very obviously expensive craftspersonship, but it is eye-catching and satisfying to drink in the detailing, extending in and around into the dash seamlessly, carrying on the flowing, salubrious themes of sculptured multi-dimensional shapes. In 1989 journos were handing out similar platitudes in the original LS.

If the techno-overload of a Mercedes MBUX or Tesla's OTT tablet leave you cold, this enhances the luxury experience by adding a rich, cosy, warm ambience – though the instrumentation binnacle is familiar; all we can see is the first IS 250 of 1999, complete with its single, watch-face inspired analogue dial.

Here, of course, it's digitised and multi-configurable to accommodate sat-nav, multimedia and other vehicle-related needs, but it is a oddly nostalgic, given the brand's first BMW 3 Series rival is now almost forgotten. Still, it's interesting and isn't that what eccentric rich people who don't want to drive the cliché luxury behemoths desire?

With endless adjustability, the seats are sumptuous to the point of subsuming, in the way you'd imagine a limousine to be, but because of their bolstered support, they also can be manipulated into gently cupping you enough to stop you sliding about when throwing the Lexus about with gay abandon – more on that later on.

It doesn't need mentioning that the fit and finish is fabulous, with the enveloping luxury continuing out in the back seat. The Sport Luxury's airline-style recliners are enough to turn doubters into doe-eyed believers, with their restful, relaxing, relieving, refreshing and revitalising ways – well, to an extent that an airport massage-chair minus the coin box and dodgy stains can, in any case. But the fact remains: ensconced deep into that leather-lined luxury, slumber beckons. Namaste!

And that's the point of LS. It creates a sanctuary from the outside elements at least as effectively as Audi A8s, BMW 7s and Merc S' have costing upwards of 50 per cent more. The cabin is spacious, soothing and secure. On our extended drive of both 500 models, this was made abundantly clear with two stints behind the wheel of the visually similar ES 300h.

Quiet and refined, that car felt loud and coarse compared to the smooth silence of its supersized sibling. Mission accomplished, Lexus.

The RX is a five-seat only proposition in this generation - the previous model had a seven-seat option - so if you need a third row you can look at the Lexus LM people mover or massive LX 4x4 SUV, or at any number of other three-row lux SUVs like the Volvo XC90 or new Mazda CX-90.

That doesn’t mean the cabin isn’t practical. 

Up front the seats offer excellent comfort levels and ample upper body support, but not a lot of hip support.

Lexus has changed up the door handles for the new RX and it can be complicated - initially.

The interior handles bamboozled every new person that got in my press car over the three week loan. But once you realise it’s a simple push of the thumb on the handle’s thumbpad and a gentle push, it all makes sense.

Lexus calls the electrically activated door handles an ‘e-latch’. Is it tech for tech’s sake? Probably. 

I recently reviewed the Lexus LM and commented on how much I like Lexus steering wheels and that’s true of the RX, too.

It has clearly identifiable controls and feels nice in your hands. Thankfully, the cruise control buttons are housed on the wheel too, so no annoying stalk on the wheel.

There’s plenty of space across the front row so you should avoid the awkward driver-passenger elbow bump on the centre armrest.

Under the armrest is a huge central bin that opens on the driver and passenger side. There’s also a big covered storage nook forward of the shifter and another ledge above that, as well as a sizeable glove box. 

The doors have ample storage room for bottles, but the space is almost too wide. My bottle slid around when driving so I had to lay it down.

The centre console houses two big cupholders with adjustable depth in one of them. Clever touches like this and the central bin add to the appeal.

As with the Lexus LM, I am a fan of the new Lexus multimedia set-up. It has an easy-to-navigate menu along the side, easy wireless Apple CarPlay connection, and visually appealing graphics.

It’s a world away from Lexus’ previous system. That frustrating touchpad is, thankfully, in the bin.

I quite like the gear shifter with its unusual gate and even the indicator feels and sounds premium.

Small rear windows make for a rear three quarter blind spot, but visibility is otherwise good.

On a side note, the RX has very strong air conditioning - perfect for an Australian summer.

Jumping into the second row, there’s plenty of space all around and no shortage of head, leg, knee and shoulder room. Although foot room under the front seats is tight.

As with the front seats, the rear row offers comfortable seating. Kids should be happy back there.

There’s only a small transmission tunnel so middle-seat legroom is good. And in great news for passengers, the rear backrests recline. 

Lowering the 40/20/40 split-fold rear seats for more cargo space is done via a lever on the side of the outboard seats, or by a button in the boot area. There are ISOFIX clips on the two outboard seats.

Other amenities in the second row include map pockets, two USB-C ports, knee-level air vents, climate control, and a pull-down armrest with pop-open cupholders.

Open the power tailgate and you’ll find cargo space of 612 litres with all seats in place, or 1678L with the second row stowed.

That’s a decent amount of space but not class leading. The Mercedes-Benz GLE has 630L and the VW Touareg can swallow 810L.

There’s no under-floor storage because that’s where some hybrid hardware is housed. You will find audio speakers, nice carpet, a cargo blind, two 4.0kg hooks and three top tethers. No spare, only a tyre repair kit.

The range-opening RX350h Luxury 2WD petrol-electric hybrid starts at $86,904, before on-road costs, and for that amount, the standard specification list is healthy. But it doesn’t include everything.

As well as a long list of standard safety gear (see section below), the RX350h comes with three-zone climate control, heated and eight-way adjustable power front seats, electric steering wheel adjust, rain-sensing wipers, a 14-inch multimedia set-up with wired Android Auto and wireless Apple CarPlay, digital radio, sat nav, a 12-speaker audio system, five USB-C (and one USB-A) ports and more.

It is missing a few items, however, that should be standard, such as a head-up display and wireless device charging. Those features are available as part of an options pack - or 'Enhancement Pack' in Lexus speak.

For $5000 more you get those two things and a panoramic sunroof, ventilated seats, a more digital instrument cluster and other goodies. 

You can opt for an all-wheel drive version of the 350h and that adds just over $3500 to the price. If you want the same powertrain but more gear then you’ll need to step up to the $110,575 Sports Luxury.

There’s also the petrol-only RX350 in F Sport and Sports Luxury guise, as well as the flagship RX500h F Sport Performance hybrid that tops out at $124,675.

Looking at the opening price of some of its rivals, Lexus has most of them beat.

The Mercedes-Benz GLE300d starts from $144,900, the BMW X5 xDrive30d is $134,900, Porsche Cayenne starts at $138,700 and the Volvo XC90 B5 Ultimate Bright kicks off from $100,990.

Only the Volkswagen Touareg 170TDI ($89,240) and Jaguar F-Pace P250 R-Dynamic ($83,700) are close on price.

The LS is powered by two versions of a 3.5-litre V6 petrol engine.

Around 75 per cent of buyers choose the 500, which employs Lexus' V35A-FTS 3445cc double overhead cam 24-valve twin-turbo V6 petrol engine, delivering 310kW of power at 6000rpm and 600Nm of torque from 1600-4800rpm. Powering the rear wheels via an updated AGA0 10-speed torque-converter automatic transmission with driver-adaptive tech, it can reach 100km/h in 5.0 seconds flat, on the way to a 250km/h top speed.

For the facelift, it receives a revised twin-turbo set-up with reduced lag, new pistons and a lighter, one-piece aluminium intake manifold to save weight and cut noise paths while retaining existing outputs.

The 500h, meanwhile, gains software updates for more electrical assistance at lower revs for stronger acceleration times and feel. It employs the 8GR-FXS engine – a 3456cc naturally-aspirated variation with a higher compression ratio (13.0:1 versus the 500's 10.478:1), developing 220kW at 6600rpm and 350Nm at 5100rpm.

Being a series-parallel hybrid, there is a 132kW/300Nm permanent magnet motor and 650-system volt lithium-ion battery, making for a combined power output to 264kW. It now can run longer on pure electric – up to 129km/h compared with 70km/h before. Sending drive to the rear wheels via the L310 continuously variable transmission with a four-speed shift device and a 10-speed simulated shift control operation to mimic more natural auto responses, it requires 5.4s to hit 100km/h, and manages the same top speed as its 500 counterpart.

Both autos, by the way, have more aggressive Sport and Sport+ shift ratio software, while the M manual mode has paddle shifters.

Kerb weight varies from 2215kg (500 Sports Luxury) to 2340kg (500h Sports Luxury).

Powering the RX350h is a series parallel hybrid system consisting of a naturally aspirated 2.5-litre four-cylinder petrol engine, a front-mounted motor and a nickel-metal hydride battery. 

Lexus doesn’t provide combined torque outputs for the hybrid, but total power for the system is pegged at 184kW.

This drives the front wheels only via a continuously variable transmission (CVT).

The LS 500 returns a combined 10.0 litres per 100km, or 14.2L/100km urban and 7.6L/100km extra urban. Thus, the combined carbon dioxide emissions rating is 227 grams per kilometre, but can range from 172-321g/km. A theoretical average range of 820km is possible.

Moving on to the hybrid, the LS 500h manages a combined 6.6L/100km, or 7.8L/100km urban and an impressive 6.2L/100km extra urban. Its combined CO2, therefore, is 150g/km, and can drop as low as 142g/km and rise as high as 180g/km.

The Hybrid's average range should be about 1240km.

Both models require premium unleaded petrol as a minimum - 95 RON in the LS 500 and 98 RON in the Hybrid.

A key goal has been on reducing the stop/start frequency of the 500h's petrol engine during high-speed driving to increase both refinement and response.

The official combined cycle fuel consumption figure for the RX350h 2WD is 5.0 litres per 100 kilometres, with CO2 emissions of 114g/km. You won’t get figures like that in a petrol or diesel competitor.

Over three weeks of mixed city, country, urban and freeway driving, I recorded 6.8L/100km which is not too bad given some of my spirited driving. The trip computer said 7.0L which is close to my figure.

The RX350h takes premium unleaded petrol and has a 65-litre fuel tank, so expect a range of around 950km based on our real-world consumption number.

No matter what it says on the badge, the LS is first and foremost a large, heavy and imposing luxury sedan. Its sporting capabilities are relative.

Keeping that in mind, the updates for the MY21 version are a success, since the largest Lexus passenger car is uncannily quiet and refined, as you might hope and expect. The ride quality is largely cushioned and free of bump intrusion inside, with a sense of gliding over most road surfaces as if they were blemish-free.

We much prefer the Sport Luxury version, and the 500h in particular, because it can run silently in electric mode for periods, and somehow feels more lavish and plusher to ride in.

Whether that's psychosomatic or actual is debatable, for essentially both the 500 and Hybrid share the same multi-link front and rear platform, adaptive dampers and rear air suspension set-up, but the impression is that this grade is the choice for those wanting to feel ultimate luxury and peace.

On paper, the 500 F Sport should be the driver's choice, since it has the racier look and set-up, as well as 600Nm of tree-trunk-pulling torque.

The thing is, it doesn't necessarily feel all that athletic, and maybe that's because the whole existence of this model is based around isolating its occupants as comfortably as possible. This is no criticism, and the LS certainly envelopes everybody as a great limo ought to, but don't expect Audi S8 levels of steering crispness or handling agility.

Anyway, if you need to feel as if you are a princess in exile escaping villains with bazookas out the back of a Kombi, then the LS does an exceptional job in keeping the 2.3-tonne-plus mass in motion, cornering safely and precisely where it is pointed to, without losing too much composure or traction in tight, fast bends. This is quite a feat, really, for the big Lexus can be hurried along a mountain pass through narrow passages like a much smaller sedan, and without being bumped out of line or off course.

Again, for all-out performance, the 500h feels stronger, especially when called on to pull ahead instantly at speed, because the electric assistance is palpable compared to the regular 500's twin-turbo V6. Both are obviously very, very fast and sufficiently responsive to throttle inputs – and it's a sign of the brand's engineering prowess that their internal serenity means the speed isn't obvious until you're looking at the speedo – but there isn't even a whiff of lag in the Hybrid. That said, once on the go, that twin-turbo V6 in the 500 soars.

Considered in this context, you have to say that the MY21 LS is an exceptionally sumptuous and sophisticated limousine with the speed, safety, security and capability of taking you from point A to B without drama or noise. 

Or, for that matter, excitement.

The old RX was competent and even nice to drive but not a patch on the likes of the BMW X5. The new-gen RX improves on that in a big way.

It offers solid acceleration from a standing start. Lexus says 8.1sec from 0-100km/h - without giving you chills. The sportiest RX is the 500h Performance hybrid and that covers the same distance in 6.2sec.

The transition from electric power to petrol propulsion is more evident in this model than it was in the LM350h people mover I tested recently - the RX is a little noisier. The CVT doesn’t help this, offering up an uninspiring engine note.

It is, however, a much more fun car to push into tight bends than the previous RX. It remains reasonably flat in corners, and pulls out of tem with ease, but can’t compare to the dynamics of the dearly departed IS sedan.

The 19-inch tyres have large sidewalls and as a result soak up harsh bumps on the road. The non-adaptive suspension is tuned for better dynamism, meaning the ride quality is on the firm side.

The front-wheel drive RX lost traction for a second on a sweeping uphill section of my drive route, but the electronic traction systems otherwise kept the big SUV in check. 

But around town in urban areas, there is very little to complain about behind the wheel of the RX350h.

The RX comes packed with standard safety gear and the SUV was awarded a maximum five-star crash safety rating from ANCAP in 2022.

Just some of the inclusions are auto emergency braking with pedestrian (day/night), cyclist (day/night) and motorcyclist (day) detection, intersection assist, emergency steering assist, driver monitoring, lane keeping aid and lane departure warning, adaptive cruise control, front and rear parking sensors, blind spot monitor (including stationary) with rear cross-traffic alert and safe exit assist to avoid 'dooring' incidents. 

I must say, Lexus’ (and parent company Toyota’s) driver assistance tech has come a long way.

In the early days of the pandemic during a rare non-lockdown period in Melbourne, I drove from Melbourne to Sydney in the previous-generation Lexus RX200 Sports Luxury.

The lane keeping system and adaptive cruise control were shockingly underdone. The cruise control would simply stop working when you encountered even a slight downhill section. 

Not anymore. The new, smoother lane keeping set-up uses subtle wheel adjustments, unlike the ping pong effect of the previous RX, and the cruise system is now very much in control of the speed.

The Lexus safety suite now operates without too much intervention and is hard to beat among its key rivals.

Lexus offers a four-year 100,000km warranty, which is considered one of the worst in the industry for mileage distance, due to the low number. Most rivals offer unlimited kilometre warranties, as well as more years in some cases.

However, it does come with a three-year program covering standard logbook services completed at an authorised service centre, with the first three annual/15,000km services for the LS costing $595 apiece.

A complimentary pickup and return service from home or workplace is available, as are a loan car, exterior wash and an interior vacuum during servicing. It's all part of the Lexus Encore Owners Benefit program, offered for three years and includes 24/7 roadside assistance.

Finally, the Encore Platinum brings the aforementioned travel destination free Lexus vehicle program (four times a year over three years) in Australia and NZ, as well as numerous valet parking and events privileges, limited to a several annually, and discounted fuel at participating outlets.

The RX350h is covered by a five-year, unlimited-kilometre warranty, and the servicing schedule is every 12 months or 15,000km.

There’s a capped-price servicing plan lasting five years and it will cost $695 per service. That's significantly less than some rivals like the Mercedes GLE.

The RX is covered by the 'Lexus Encore' loyalty program and includes complimentary service loan cars, fuel offers as well as discounts and other offers with Lexus partners.