Lexus IS300 vs Lexus LS460

What's the difference?

The new-look Lexus IS takes several steps forward over its predecessor - it’s safer, smarter, sharper to look at and still pretty well priced and equipped.

It is feeling its age inside, and the competition has moved on in terms of engines and EV tech. But even so, if I was buying a 2021 Lexus IS, it would have to be the IS350 F Sport, which is just the most fitting version of this car, though the IS300h Luxury does have plenty to like for the money, too.

The Lexus LS 500 and 500h are both exceptional cars. The ‘obnoxious’ styling especially to the grille makes the offerings from BMW, Benz and Audi look bland and overly corporate inside and out. It’s really in the dynamics department that the LS falls short of its rivals and only the LS 500 is enjoyable if you like to drive with a degree of conviction. 

Both the LS500 and 500h, though, have wonderfully comfortable rides and this together with those sumptuous interiors makes these the perfect place to be if you’re in the back being swiftly and quietly taken to you next meeting.

For me the sweet-spot pick would be the LS 500 F Sport for its value and dynamic ability.

You either get the Lexus look or you don’t, and I think this latest version is possibly more agreeable than the IS in years gone by.

That’s partly because the brand has finally done away with the odd spider-eyes twin-section headlights and daytime running lights - now there are more traditional headlight clusters, which look a lot more resolved than before.

The front end still features a bold ‘spindle’ grille, which gets different treatment depending on the grade, and the front, to my eye, looks better than before but still very much stuck in its ways. 

At the side you’ll notice the giveaway windowline hasn’t changed, despite the chrome trim line having broadened as part of this facelift, but you can tell the haunches have muscled up a bit, with the new IS now 30mm wider overall, and the wheel sizes are 18s or 19s, depending on the grade.

The rear accentuates that width, with an L-shaped lighting signature now spanning the entire re-sculpted boot lid, giving the IS a pretty tidy rear end design.

Overall dimensions for the IS are 4710mm long, making it 30mm longer nose to tail (on an unchanged 2800mm wheelbase), while it now spreads across 1840mm (+30mm) and is 1435mm tall (+5mm).

The exterior changes really are impressive - I think it is a more purposeful but also more pleasant looking car now than it ever has been in this current generation. 

The interior? Well, there’s not a whole lot to talk about in terms of design changes, aside from the repositioned and larger media screen - which sits 150mm closer to the driver because it’s now a touchscreen with the latest smartphone mirroring tech. Otherwise it’s a carryover affair, as you can see from the interior pictures.

“You’re either going to love them or hate them.” You can bet that whenever you’re told this just before being introduced to somebody then that somebody is going to be downright obnoxious. The same goes for the LS, well it’s face anyway, because those are the kinds of statements made about that grille.

The thing is, the LS needs an obnoxious face because its up against The Establishment -  the Mercedes-Benz S -Class, BMW 7 Series and Audi A8, and given there’s no way they’ll ever let Lexus into their little ‘club’ it’s good that the LS has steered clear of imitating them and is boldly different.

This was also the type of thinking which inspired the grille’s creator, Tokuo Fukuichi. The so called ‘spindle grille’ first appeared in 2010 on the CT200h before rolling out to the rest of the Lexus line-up. The look polarised the opinions of fans and even executives inside Lexus. But Fukuichi was adamant the key to the brand’s survival and success was to not to be boring.

That massive gaping mouth is anything but boring, and for this new-generation LS the spindle grille has been overhauled. Yes, some car companies might make a few tweaks to a grille, but not Lexus. Using a CAD computer program, it took designers six months to refine each of the 5032 surfaces on the F-Sport’s grille and the more than 7000 on the Sports Luxury’s. If only you didn’t have to slap a number plate on these exquisitely spun net-like structures.

New LED headlights and the ‘Zorro blade-slash’ LED running lights are equally obnoxious and therefore perfectly suited for the LS’s face. So too are the enormous air inlets below them in the bumper. If only the rest of the car’s exterior was as wild and not mild and milder the further you get from the grille. The rear looks stately, modern and sleek but could have done with something more adventurous (similar to IS’s taillights).

But the LS’s insides make up for that dullness, with a cabin that’s decadent and alien at the same time. A dash which sweeps from door to door features asymmetrical string-like design elements which are a theme carved through wood and glass and stitched into leather throughout the cabin. The quality is superb, while the fit and finish is better than I’ve seen on some of its competitors.

There are four no-cost interior packages on the Sports Luxury ranging from 'Moon White' trim with walnut decorative inlays to black trim with 'Crafted Latte' inserts. But it’s the $9800 optional 'Black with hand-pleating' and 'Kiriko' glass which is a stand out. It’s an intriguing look, the pleated fabric which cascades around the hand-cut Japanese glass.

The F Sport’s cabin is less decorative with seats that hold you tighter in three no-cost option leathers from 'Moon White' to 'Flare Red' with aluminium door and dash decorative elements.

Both cabins are sumptuous, although they fall a little short in gob-smacking tech like those amazing, expansive, floating dash screens and the virtual instrument cluster in the S-Class. Yes, there’s the large screen up front and the seat-back screens in the rear but the styling of the graphics and typeface reveal the Toyota DNA.

The LS has the presence a prestige brand’s flagship car should - imposing, long and wide. Look at the LS’s dimensions. At 5235mm end-to-end and 1900mm across, the LS is longer and wider than a Mercedes-Benz S-Class, but swoops in lower at 1450mm. The LS’s wheelbase is longer than a regular S-Class’s at 3125mm, too.

Apart from the grille you can tell an F Sport from a Sports Luxury by its black brake calipers and black elements in the front bumper, boot lid and sill.

To tell a 500 from a 500h, the difference is subtle. There are the badges, of course, but the 500's rear bumper also has a different design with chrome exhaust surrounds.

The interior design of the IS, as mentioned, hasn’t changed dramatically, and it is starting to feel old compared to some of its contemporaries.

It’s still a nice place to be, with comfortable front seats with electric adjustment and heating across all grades, and cooling on many variants, too. 

The new 10.3-inch touchscreen media system is a nice unit, and means you can essentially do away with the silly trackpad system that still resides near the gear selector, so you may still end up bumping it accidentally. And the fact the IS now has Apple CarPlay and Android Auto (though neither are wirelessly connectable) does further its appeal on the multimedia front, as does the standard 10-speaker Pioneer stereo - though the 17-speaker Mark Levinson unit is an absolute blinder!

The centre stack below the media screen retains a CD player, and still has the electromagnetic temperature adjustment sliders as well. That part of the design is dating it just as much as the transmission tunnel console area, which looks a bit out of touch by modern standards, though still incorporates a pair of cup holders and a reasonably large centre console bin with soft armrest padding.

The front doors feature trenches with bottle holders as well, while in the rear doors there is still no drink storage - a carryover annoyance from the pre-facelift model. However, the middle seat in the back doubles as an armrest with pop-out cupholders, and there are rear air vents too.

Speaking of that middle seat, you wouldn’t want to sit in it for long, as it has a raised base and uncomfortable backrest, plus there’s a huge transmission tunnel intrusion eating into leg and foot space.

Outboard passengers also miss out on toe room, which - for my size 12s - is an issue. And it’s hardly the roomiest second row in this class for knee room and headroom, as my 182cm frame was a touch squished behind my own driving position.

Children will be better catered for in the back, and there are two ISOFIX anchorages and three top-tether attachment points for baby seats.

The boot capacity varies on the model you buy. Choose an IS300 or IS350 and you score 480 litres (VDA) of cargo capacity, while the IS300h has a battery pack that robs it of some boot space, with 450L available. 

Anything with a 3.1m wheelbase has to be practical right? Well, legroom in the back is excellent, but I can’t properly stretch out in that reclining rear seat with the ottoman without my feet hitting the seatback.

Headroom is also a bit a restricted in that rear row for me, too. That’s something to keep in mind for taller passengers (I'm 191cm tall).

A cargo capacity of 480 litres is 30 litres shy of the Mercedes-Benz S-Class, while the cooler box in the rear (that comes with the Sports Luxury trim) eats into the boot space and drops the total to 440 litres.

The LS is a five-seat sedan, but that centre rear seatback folds forward to become the armrest and houses the controls to the massage and reclining functions, plus two cupholders.

There’s another two cupholders up front and pockets in all the doors. While the storage area under the centre console armrest in the front and back is good – that’s about it for storage.

An access mode will raise the car by 30mm when getting in and lower it by 10mm when getting out. Those wide opening doors also make entry and exit easier.

The line-up is simple. There are two powertrains: the turbo-petrol V6 LS 500, and the petrol-electric LS500h hybrid, and there's no price difference between them. Then, there are two trim levels: the F Sport for $190,500 and Sports Luxury for $195,500. 

Coming standard on the F Sport are 'F Sport' seats with leather upholstery, heated front and rear seats, dual-zone climate control, 28-way power adjustable front seats and head-up display. The multimedia system comes with a 12.3-inch screen, sat nav, DVD player, DAB+ digital radio, Bluetooth connectivity and a 23-speaker Mark Levinson sound system.

There’s also LED headlights, 20-inch alloy wheels and a kick-open tailgate. While the F-Sport misses out on some of the plush features of the Sports Luxury it does get hardware for better on-road dynamics which you can read about in the driving section below.

The Sports Luxury has that large screen, those power adjustable front seats and the multimedia system with that Mark Levinson stereo, too, but adds much more. The front passenger seat slides and folds itself forward to allow the seat behind it to recline and extend its ottoman-style leg rest. 

Both rear seats are 22-way power adjustable and heated. If you’re lucky enough to be lounging back there, you’ll also two 11.6-inch seat-back screens with a DVD player. Plus, there’s four-zone climate control, a rear cooler box and power sun shades.

The F-Sport and Sports Luxury have their own choice of no-cost interior options. The Sports Luxury also gives you the option to buy (for $9800) one of four special interior packs – you can read about the standout one with the hand-cut glass below.

There are 11 body colours to choose from: Sonic Quartz, Sonic Silver, Titanium, Liquid Metal, Onyx, Graphite Black, Vermillion, Scarlet Crimson (a dark red), Metallic Silk, Deep Metallic Bronze and Deep Blue.

The engine specs depend on the powertrain you choose. And at a glance there’s no variance between the earlier version of the IS and the 2021 facelift.

That means the IS300 model still runs a 2.0-litre turbocharged petrol motor producing 180kW of power (at 5800rpm) and 350Nm of torque (at 1650-4400rpm). It has an eight-speed automatic transmission, and like all IS models, it is rear-wheel drive (RWD/2WD) - there is no all-wheel drive (AWD/4WD) model here.

Next up the spectrum is the IS300h model, which has a 2.5-litre four-cylinder Atkinson cycle petrol motor teamed to an electric motor and nickel metal hydride battery pack. The petrol engine is good for a 133kW (at 6000rpm) and 221Nm (at 4200-5400rpm), and the electric motor produces 105kW/300Nm - but the combined total maximum power output is 164kW, and Lexus doesn’t provide a maximum torque figure. The 300h model runs a CVT automatic transmission.

The big horsepower offering here is the IS350, which runs a 3.5-litre petrol V6 engine, producing 232kW of power (at 6600rpm) and 380Nm of torque (at 4800-4900rpm). It runs an eight-speed auto.

All models have paddle-shifters, while the two non-hybrid models have seen tweaks to the transmission software that is said to “estimate driver intentions” for better enjoyment. 

Let's talk engine specifications .The LS 500 has a 3.5-litre twin-turbo petrol V6 making 310kW/600Nm, with drive being sent to the rear wheels via a 10-speed automatic transmission. That's impressive horsepower, but this car is heavy is a weight of about 2.3 tonnes.

The LS 500h has a 220kW/350Nm 3.5-litre V6 (a different engine to the 500’s) plus two electric motors driving the rear wheels. The total power output is 264kW. Shifting gears in the 500h is a continuously variable transmission (CVT). Just a reminder, too, the LS 500h is not  a plug-in hybrid. Regenerative braking re-charges the lithium-ion batteries.  

If you're looking for a diesel, you won't find one here. Same goes for a manual gearbox. And, while buyers can choose an all-wheel drive (awd) Lexus LS in other markets around the world, ours are all front-wheel drive.  

There’s still no diesel model, no plug-in hybrid and no full electric (EV) model - which means that while Lexus was at the forefront of electrification with its so-called “self-charging” hybrids, it is falling behind the times. You can get plug-in versions of the BMW 3 Series and Mercedes C-Class, and the Tesla Model 3 plays in this space in full-electric guise.

As for the fuel-sipping hero of this trio of powertrains, the IS300h is said to use 5.1 litres per 100 kilometres on the combined cycle fuel test. In reality, our test car’s dashboard showed 6.1L/100km across a mix of driving.

The IS300 with its turbocharged 2.0L engine is next best for fuel use, claiming 8.2L/100km. On our short launch drive of that model, we saw 9.6L/100km on the dashboard.

And the full-fat IS350 V6 petrol claims consumption of 9.5L/100km, while on test we saw 13.4L/100km.

The emissions for the three models are 191g/km (IS300), 217g/km (IS350) and 116g/km (IS300h). All three are Euro 6B compliant. 

Fuel tank capacity is 66 litres for all models, meaning your mileage range for the hybrid model could be considerably longer.

The LS 500 has an official fuel consumption of 9.5L/100km while the 500h’s is 6.6L/100km after open and urban road driving. We drove both cars on mainly country roads and saw an average of 10.1L/100km in the LS 500 and 9.1L/100km in the 500h.

With the engine at the front and drive to the back, it has the ingredients for a pure driver’s car, and Lexus made a bit of a big deal about the new-look IS being more focused thanks to chassis adjustments and track width improvements - and it does feel a pretty nimble and tied-down car in the twisty stuff. 

It is competent at stitching together a series of corners, and the F Sport models are particularly adept. The adaptive suspension in those models includes both anti-dive and anti-squat tech, which is designed to make the car feel solid and flat on the road - and it does, thankfully without feeling twitchy or uncomfortable, with good suspension compliance even in the most aggressive Sport S+ drive mode.

The 19-inch wheels on F Sport models are fitted with Dunlop SP Sport Maxx rubber (235/40 front, 265/35 rear) and there’s plenty of tarmac tenacity.

The grip from Luxury-spec models on 18s could be better, with those Bridgestone Turanza tyres (235/45 all around) proving not quite the most enthralling. 

Indeed, the IS300h Luxury I drove felt very different in character to the F Sport IS300 and 350 models. It was surprising how much more of a plush-focused model the Luxury grade feels, and likewise it wasn’t as impressive in dynamic driving due to the tyre grip and less-enthusiastic drive mode system. The non-adaptive suspension is a touch more jittery too, and while it’s not to the point of discomfort, you might expect better for a car on 18s.  

Across all models the steering is accurate and direct enough, with predictable response and decent feel to the driver’s hands for this electric power steering setup. The F Sport models have even further retuned steering for “an even sportier drive experience”, though I found at times it could feel a little numb for rapid changes of direction. 

As for engines, the IS350 is still the pick. It has the best zest, and feels the most fitting powertrain for this model. It sounds good, too. The auto transmission is pretty clever, there's easily enough pulling power, and it's probably going to be the last of the non-turbo V6s in Lexus's line-up when this cars life-cycle is up.

The IS300's turbo engine was the most disappointing, lacking some urge and constantly feeling bogged down by turbo lag, transmission confusion, or both. It felt underdone in enthusiastic driving, though in dull day-to-day commuting circumstances it came across as more acceptable, though the remapped transmission software was far less impressive in this application than in the IS350.

The IS300h was a lovely, quiet and refined experience all around. It’s the one you should go for if you don’t really care about all that go-fast stuff. The powertrain is proven, it accelerates with nice linear delivery, and at times it’s so hushed I found myself looking down at the instrument cluster to see if the car was in EV mode or if it was using the petrol engine. 

My first experience of the new LS was from the back seat of a 500 Sports Luxury being driven from the airport to the venue where Lexus Australia would deliver the presentation on its fifth generation of the car.

Seat reclined, I was whisked quietly and comfortably through the traffic, barely any road or wind noise, the ride was superb on that air suspension, a little floaty but still damped well enough for it not to become bouncy, with minimal head sway (the movement that makes you car sick).

Cocooned in leather with seat-back screens for audio and DVD the ride and environment was just right for a limousine chauffeuring important business types who need swift and tranquil transportation. Not for weirdos like me who were only interested in the way the front and back multi-link suspension kept a 2.3-tonne car with a 3.1m wheelbase so civilised, even through roundabouts. I wondered if this was actually the best way to experience the LS – from the back seats, being driven?

When I did drive the 500 and 500h in the two trims later it more or less confirmed that first impression. The 500 in F Sport trim was the best to drive, while the 500 in Sports Luxury was the best to be driven in. Why? I’ll explain.

The LS 500’s 3.5-litre twin-turbo V6 makes more power than the hybrid for starters, which is always a good thing when you need to move a car this heavy. Even then the LS 500’s acceleration isn’t super quick, and the engine needs to work hard when asked to get a wriggle on. That 10-speed automatic transmission is excellent though. 

The same can’t be said for the CVT in the 500h which under harder acceleration does what CVTs do in that situation, make more noise without seeming to get the drive effectively to the wheels.

The 500h’s naturally aspirated V6 is a good thing, but it seems the weight of the car and the CVT work against it being exciting to drive. After a couple of hundred kilometres in a 500h blasting through the countryside steering it became tiresome rather than rewarding with the engine constantly kicking in and whining incessantly when asked for more beans, please. 

This car is far better suited to slipping silently through city streets than it is galloping through the bush – that’s where the 500 is a lot more at home.

The 500 and 500h are rear-wheel drive cars, and this, along with an almost 50-50 balance, sets the ground work for good cars to pilot. The F-Sport trim adds an active rear stabiliser bar as standard equipment and brings a more sophisticated version of Lexus’s 'Vehicle Dynamic Integrated Management' (VDIM) – a stability system using data from suspension, ABS, traction control, electric power steering, the stabiliser bar and rear steering. The result is the control of longitudinal, vertical, yaw, roll and pitch movements for better ride and handling.

The F Sport trims adds bigger brakes, too with 400mm x 36mm discs on the front and 359mm x 30mm at the back, plus staggered tyres with 245mm rubber at the front and 275mm at the rear.

The electric steering is light, which makes it easy to manoeuvre in carparks, and an 11.2m turning circle is great for the class. 

On the open road at speed the steering is pinky-finger light even in Sport+ mode, and while it’s smooth and accurate, I want to feel more connected to the wheels and where they’re pointed.

While the LS 500 is more the driver’s car than the 500h neither perform as well dynamically as Benz’s S-Class, but from the back seat the LS feels just as comfortable and even plusher.

The Lexus LS has not been crash tested, but all the signs are there that this is an exceptionally safe vehicle, from the structure of the car to the advanced safety technology such as AEB (forward and reverse) with pedestrian detection, lane keeping assistance and adaptive cruise control.

For child seats there are three top tether anchor points and two ISOFIX mounts across the rear seats.

Both the 500 and 500h are fitted with run-flat tyres.  

On paper, Lexus’s ownership offer isn’t quite as enticing as some other luxury car brands - but it has a strong reputation for blissful ownership.

The Lexus Australia warranty period is four years/100,000km, which is better for duration than Audi and BMW (both three years/unlimited km) but not as accommodating as Mercedes-Benz or Genesis, each of which offer five-year/unlimited km warranty.

The company has a three-year capped price servicing plan, with maintenance every 12 months or 15,000km. The first three visits cost $495 each. That’s okay - but Lexus doesn’t offer free servicing like Genesis, and nor does it offer prepaid service plans - for three to five years for a C-Class, and five years for Audi A4/A5, for instance.

There is complimentary roadside assistance for the first three years, too.

That said, the company has its Encore ownership benefits program that allows a number of experiences and deals, and the service team will collect your car and return it, leaving you with a loan car if you need it.

The Lexus LS is covered by a four-year/100,0000km warranty. Servicing is recommended every 15,000km or 12 months. There is no capped price servicing program. Being a Toyota family product the Lexus LS also comes backed by the same reputation for reliability and you may experience lower maintenance costs than perhaps its German rivals.