Lexus LC500H vs Lexus RX450H

What's the difference?

A truly fuel-efficient performance car, who’d have thought? There are some obvious trade-offs for trying to exist in two seperate worlds, but the Lexus LC 500h largely handles its dual roles with aplomb.

The RX is a little frustrating - it's going after Mercedes and BMW and Audi in a hotly-contested space and falls over in a couple of key areas. The media/sat nav system is hopelessly outdated and the drivetrain fails to deliver a significant performance or fuel benefit (although, given its 2.2 tonnes, perhaps it delivers a miracle).

It does come with a rock-solid, scandal-free reputation, a reputation for spectacular customer service, it has a lovely cabin and it's certainly an individual looker. For plenty of people, that's quite enough.

It's a little curious, the LC 500h. For mine, it's stunning from a distance. All gleaming alloys and bulging rear arches and sharp snout angled downward like its caught the scent of its prey.

But weirdly, it can start to look a little less impressive the closer you get to it - a little swollen and vague in its lines. It's very likely it's eye-of-the-beholder stuff (fellow CarsGuide scribe Richard Berry adores it from every angle, for example).

Inside, the front of the cabin is a busy but stylish space, with multiple textures layered on top of each other to produce a premium-feeling, sporty space. The low-feeling dash juts out, giving the front passengers an ensconced, cockpit feel.

Everything is predictably leather-wrapped and lovely, and while it's not as streamlined as, say, an Audi interior, it's not without a genuine sense of Japanese charm in the cabin.

There's a lot of RX and there's a lot going on in that creased, folded and teased sheetmetal. It's a unique design, with a huge 'spindle grille', big lights and the fast glass both front and rear.

It positively screeches Lexus DNA and was a polarising force on our driveway for the week. Most weren't sure, but knew for certain it was a Lexus.

Aggressively flared wheelarches like this aren't common on SUVs (although the squared-off ones are). It's right up on stilts, but the 20s you find it rolling on help to reduce its visual bulk.

That wacky rear quarter glass reminds me of the BMW i3's but it's a Lexus SUV signature. It's quite striking. Do I like it? Not really, but that's completely subjective. You can tell, though, it's built tight as a drum.

Inside is a bit calmer, beautifully laid-out and built to last. The materials are almost all top notch, with lovely switchgear and the real leather is really nice.

There is absolutely nothing avant-garde in there (apart from maybe the pinstripe effect on the centre console), it's all terribly comfortable and easy on the eye. But not exciting, though not all Lexuses are.

This particular car is very US-centric and, if I may, a particularly sunny and humid part, so it can't be too wacky.

It's not really. Especially in the backseats, which would make more sense if they were painted on. I'm no giant, but even my 175cm-tall head was pushed into the ceiling, and while there’s ample shoulder space for two adults, you’re unlikely to be able to convince two to get back there. 

Lexus has included something called the "Easy Access" function for 2020, which sees the front seats slide forward automatically to help with accessing the rear seats, and they do lower the Cirque du Soleil antics required to get back there, but this realistically not a car for carrying more than two adults, save an emergency. There are two ISOFIX attachment points in the rear, so child seats can be locked in there. 

That's not necessarily a drawback, though. This is a two-door sporty coupe, after all, and elsewhere, the sizeable dimensions (4770mm length x 1920mm width x 1345mm height) provide plenty of space for up-front riders.

You'll also find hidden cupholders, bottle holders in the doors, and all the power and connection points you need. 

A word on the tech, though. The LC 500h is crying out for a touch screen, though the brand's traditional mousepad system is improving.

There is plenty of room inside this big unit, which is very welcome. Front seat passengers have lots of storage, such as a deep central bin under the armrest, dual cupholders and big door pockets with bottle holders.

Step into the rear and there is a ton of leg and headroom although the transmission tunnel intrudes slightly for the middle passenger. Chuck them out, drop the armrest and you have two more cupholders and each door has pockets and bottle holders.

The boot is pretty big considering the angle of the rear glass. You start with 453 litres (but an expanse of flat floor), which rises to 924 litres with the split-fold seats down. That seems conservative given just how much space you appear to have.

The RX450h F Sport lightens your bank account of $102,460 before on-road costs, the only hybrid SUV within cooee of this price.

That nets you 20-inch alloys, a 15-speaker stereo, dual-zone climate control, heated and cooled electric front seats, reversing camera, that ever rare CD player, keyless entry and start, a solid safety package, reversing sensors, active cruise control, sat nav, a massive sunroof, auto LED headlights, head-up display, partial leather interior, power tailgate, auto wipers and a space-saver spare.

The Lexus media system is run from the gigantic dash-mounted screen that is shamed only by those massive Tesla units.

Sadly, the joystick-style control remains as does the very confusing software system that is less than delightful to use. It's such a shame that a tech-laden machine is let down by the world's most baffling entertainment system.

Once you get it working and understand it, it's okay, I guess, but several years into this job I still can't easily fathom how it works. And that naff analogue clock...

F Sport cars also pick up adaptive suspension and a several driving modes to liven things up.

The LC 500h is powered by a hybrid setup that combines a 3.5-litre V6 engine with a 650-volt "Lexus Hybrid Drive" system and a lithium-ion battery. That setup delivers 264kW of power, and somewhere north of 350Nm in torque when the engine and motor outputs combine.

That power is sent to the rear wheels via a CVT automatic, and will produce a sprint to 100km/h of around 5.0 seconds. 

According to Lexus, 10 clear improvements were made the way the 2020 LC 500h drives, including a new transmission tune, more structural bracing added for rigidity, new suspension components and spring rates, and altered stabiliser bars. 

Has it made a difference? Read on. 

You can choose three different powertrains in the RX - a 3.5-litre V6, a 2.0-litre turbo four-cylinder, or this one, the 3.5-litre V6 with hybrid.

As a series hybrid it can run for short distances on electric only before firing up the V6 to supply charging and motivation.

The 3.5 produces 193kW/335Nm along with the electric motor. That torque figure seems low and it probably is, but that's a function of the weird way of measuring torque from a hybrid unit. The combined power figure, however, is 230kW.

The hybrid system is hooked up to Lexus' CVT auto and sends power to all four wheels. Lexus says the 450h will complete the sprint from 0-100km/h in 7.7 seconds, which isn't bad for a 2210kg SUV.

Lexus says the LC 500h will sip 6.8 litres per hundred kilometres on the combined cycle - very impressive for what is ostensibly a performance coupe - and emit 152g/km. 

The LC 500h is equipped with an 82-litre fuel tank. 

The official combined cycle figure is listed as 5.7L/100km. And, uh, yeah, we didn't get that. I did manage 8.9L/100km over the week, which included a long motorway run from Sydney up to the Blue Mountains (a roughly 160km round trip).

There’s something very strange about hitting the start button in what is ostensibly a sports car, and being greeted not by the bark of an exhaust, but by the gentle whirring on the car’s electronics coming to life.

But then, the Lexus LC500h is not your average performance car.

It essentially trades the out-and-out grunt of its V8-powered sibling (which produces a monstrous 351kW and 540Nm) for a kind of best-of-both-worlds approach that pairs the punch of the V6 engine with the fuel efficiency of a hybrid powertrain. 

If that sounds like an compromised approach to pure performance, you're right. But reframe the way you look at the LC 500h and it all starts to make a bit more sense.

Remember, this isn't a track-attack weapon, but a potent on-road bruiser, and the flow of power on offer always feels ample, and you never want for too much more off-the-line pace on public roads. 

Among the biggest selling points of the LC 500h is the sheer distance between its various personalities. Engage Eco, or even Normal, drive modes, and it’s a quiet, mostly very comfortable (though it can be unsettled by bigger bumps) kilometre-eater, but engage Sport or Sport Plus and it rightly transforms into something significantly angrier.

It might not be the absolute sharpest tool in the performance car shed, but the LC 500h does bristle nicely when those modes are engaged, the hybrid factor seemingly replaced by a satisfyingly meaty exhaust note and an accelerator that’s suddenly far more sensitive to the touch.

The steering feel is nice and the inputs direct, but there is something about the car’s 1980kg weight that doesn’t inspire the deepest of confidence, at least not on the rain-slicked roads we were travelling along .

A pure performance coupe? Perhaps not. But a sporty, stylish and, when you want it to be, comfortable cruiser with the ability to turn the volume up when you come across a twisting road? Bingo.

Right. So this is a salutary lesson about tyre pressures. The first few days the tyres were only pumped up to 200kpa (29psi). That's an easy 100kpa (14psi) short of the required 300 (43psi).

Every time I, or my wife, went around a corner, the big Dunlop Sport Maxx SPs would squeal and squirm and it was most unsatisfactory.

So check your tyres, because the extra 100kpa makes all the difference. Also, the number of service stations it took to find a working pump was unacceptable. Pull your socks up, Sydney.

Anyway.

Correct tyre pressures enacted, the big Lexus turned into a comfortable, competent cruiser. Its motorway performance is super-impressive, purring along the M4 and it's ridiculously poor surface like it was born to it. Which it sort of was.

The hybrid drivetrain allied to the CVT is mostly whisper quiet. It's not the most responsive combination, the initial step-off of the electric motor's torque soon giving way to the rubber band effect of the transmission.

It doesn't feel as swift as the claimed 7.7 seconds and it would be nice if the drive select dial made a genuine difference to the throttle and transmission's response.

In the city, it's a proper wafter, moving about the broken down city streets of Sydney without fuss and a plush ride that's a bit of a surprise given the huge wheels and substantial weight of RX.

It's all very easy and pleasant but the wild looks do not match the experience. Which is not a criticism, just an observation.

The RX ships with eight airbags (including knee airbags for both front seats), ABS, stability and traction controls, blind spot sensor, reversing camera, forward collision warning, forward AEB and reverse cross traffic alert.

There are three top tether restraints and two ISOFIX points. 

The RX scored a maximum five ANCAP stars in January 2016.

So, to ownership. Let's start with the basics first, before we move onto the new Encore Platinum benefits. 

The LC 500h is covered by a four-year/100,000km warranty, and servicing (capped for three years at $595 a pop) is required every 15,000km.

You will know already the Lexus's stellar Encore ownership program includes handy features like valet (pick-up and drop-off) servicing, but the new Encore Platinum level for owners of its more exclusive models unlocks some seriously cool stuff. 

One is a new On Demand service, which allows owners to book a different style of car when heading off on a holiday or business trip. So, say you own the LC 500h, but want to take the family to the snow and need a seven-seat 4WD like the RX L, then Lexus will lend you one at no charge, which you can keep for eight days.

The loans are available in your state or somewhere else in Australia if you're travelling, with your car waiting for you at Qantas Valet for you when you arrive. 

The One Demand service is available on four occasions over your first three years of ownership (which is also the length of the Encore Platinum membership). 

The Platinum level also provides eight examples of free valet parking at select shopping centres, as well as hotel and restaurant benefits, and invitations to Lexus' drive days around the country.

Lexus offers a fence-sitting four year/100,000km warranty with roadside assist thrown into the bargain for the same period. 

Service intervals arrive at 12 month/15,000km and there is, sadly, no capped-price servicing.

Lexus will, however, promise you a car for the day or come and get your car from you and drop it back when the service is done. And it will be washed and vacuumed. The website makes a big deal about that.