Citroen C4 vs Lexus Rx450H+

What's the difference?

It’s weird, wonderful and fun, in more ways that one. I think every segment could use an oddball alternative like the C4. Citroen has successfully transformed it from a hatch to a small SUV with a difference. It’s not going to be for everyone – few Citroens are – but those who are willing to take a chance will be rewarded with a surprisingly competitive little package that stands apart from the crowd.

The new Lexus RX450h+ Sports Luxury is packed with a wealth of premium features and strikes a solid balance between refinement and practicality. There are enough thoughtful touches that make everyday driving a little easier.

You’ll get the most out of the plug-in hybrid powertrain if you’re able to charge it regularly; ideally every day. That might not always be practical for busy people on the go, but overall, the RX450h+ manages to blend efficiency with Lexus’ signature comfort and quality.

It’s really hard to stand out in Australia’s busy marketplace, especially in this small SUV space, where there doesn’t really seem to be as much of a design rulebook as there is in other segments.

Rooflines are wildly different, as are beltines and light profiles. While some may decry the fall of the hatchback to these more high-riding options, at least some of them are bringing fresh design ideas to the car world.

Our C4 is a great example. An SUV perhaps in profile only, it sports a slinky descending roofline, tall, contoured bonnet, a frowny-face LED profile, and characterful plastic claddings, which are a continuation of Citroen’s ‘Airbump’ elements, which gave cars like the previous-generation C4 Cactus such a unique look.

The rear is this car’s most confronting angle, with a post-modern approach to the light profile, and in reference to C4s past, a spoiler integrated into the rear tailgate.

It looks cool, contemporary, and I think is successful in its aim to blend the sporty elements from the hatch world with the sought-after high-riding elements of an SUV.

It certainly caught a few eyeballs in my time with it, and if nothing else, a bit of attention is something the Citroen brand desperately needs.

In the past you could rely on this brand to give you a funky interior, but one that sadly also came with its fair share of sub-par plastics and strange ergonomic. So I’m pleased to report that the new C4 dips into the better looking and feeling Stellantis parts catalogue for a still interesting yet more coherent experience this time around.

The modern look and feel of this car continues with interesting seat designs, a high-riding dash with a higher degree of digitization than before, and improved ergonomic features (even over some notable Peugeots). We’ll talk more about those in the practicality section, but the C4 feels as weird and different from behind the wheel as you’d hope , with an odd dash profile, a fun and minimalist steering yoke, and attention-to-detail elements, like a detail strip that runs through the door trims and across the seats.

These elements are welcome and help separate this Citroen from its Peugeot siblings. It will need this going forward, as it also now shares much of its switchgear and screens with its sister brand.

This is largely a good thing, with the 10-inch screen looking and feeling good and slotting into this car’s design nicely.

The RX isn’t breaking new ground with its plug-in hybrid design, but it still delivers that signature Lexus understated refinement.

The strong, flowing body lines, 21-inch alloy wheels and updated 'spindle grille' all give it presence without screaming for attention.

And in a segment where boxy and bulky designs tend to dominate, the RX’s swoopy silhouette helps it stand apart in all the right ways.

Inside, the cabin feels considered and luxurious. There's a heavy use of premium materials, including the leather and suede upholstery, plush soft-touch surfaces and the big, crisp displays that make the space feel modern and high-end.

The panoramic sunroof brings in loads of natural light, too, which is especially welcome given the dark headliner that might otherwise feel a little heavy.

If I have one gripe, it’s the thin steering wheel, which doesn’t quite match the otherwise solid, tactile feel of the rest of the interior. But overall, the cabin is a space that feels luxurious and well-executed. It's quietly confident, just like the RX.

The C4 brings some interesting practicality elements. There are a few areas where it’s even better than the improved layouts of recent Peugeot models.

The cabin feels spacious, with the C4’s relatively long wheelbase providing ample room in both rows. Adjustability is good for the driver, although it is worth noting that the seats have an odd blend of manual adjust for sliding fore and aft, contrasted with electrical adjust for seat height and tilt.

Comfort is superb from the memory-foam stuffed and thick synthetic-leather-clad seats. I don’t know why more cars don’t adopt this approach to seat design. You sink into these seats and are left feeling like you’re floating above the ground rather than sitting on something. The feeling here is unmatched in the small SUV space.

The massage function is a wholly unnecessary addition, and with the thick seat cladding, it didn’t really add much to the experience.

The seat bases aren’t too high either, unlike some cars in the SUV class, but the dash design itself is very tall, so people shorter than my 182cm height might find extra adjustment is required to see over the bonnet.

There are large bottle holders in each door with a very small bin; dual cupholders in the centre console, and a small armrest console box.

There’s also an odd little two-tiered shelf under the climate unit, with a removable base for extra storage underneath. It seems to me that the top shelf is a missed opportunity to place a wireless charger, although connectivity is handy with the choice of USB-C or USB 2.0 to connect to the wired phone mirroring.

A big win is the presence of a full dial set for not just volume but the climate unit too. This is something the Citroen scores over some of the new Peugeots, which have moved the climate functions to the screen.

Somewhat less wonderful are the digital dash cluster and holographic head-up display. These seem to be a bit redundant in the information they display to the driver, and the digital dash has no customisation, leaving me wondering what the point of it is.

The C4 also has some interesting innovations on the front passenger side. It has an unusually large glovebox and a neat little sliding tray, which looks like something from a Bond car.

It also has a slide-out tablet holder. This odd little thing lets you securely mount a tablet to the dash to provide a multimedia solution for the front passenger, which may be good for entertaining larger kids on longer journeys. Or adults who don't want to talk to the driver. It’s a neat inclusion, but I’m not sure how many people will use it in the real world.

The back seat offers a remarkable amount of room. I’m 182cm tall and had heaps of knee room behind my own driving position. The nice seat trims continue, as does the patternwork and detailing, which is the kind of attention to detail you don’t always get from rivals.

Headroom is a little limited, but you also score dual adjustable air vents and a single USB port.

The boot comes in at a hatch-sized 380-litres (VDA). It’s a neat, square shape with no little cutaways at the sides and is just big enough to fit our full CarsGuide demo luggage set, but leaves no room to spare. The C4 features a space-saver spare wheel under the floor.

The RX cabin is thoughtfully laid out and impressively practical, with a premium feel that doesn’t come at the cost of everyday usability.

Up front, there’s plenty of space for driver and passenger, yet the stepped dash design brings a sense of intimacy. The electric front seats are seriously comfortable, with four-way lumbar support and extra adjustment functions that make this an easy choice for long drives.

Storage options are generous, too. There’s a clever dual-opening centre console, large glove box, multiple phone-sized shelves, map pockets and a couple of cup- and drink holders in each row.

Charging is taken care of by four USB-C ports, one USB-A port and a wireless charging pad.

Tech is up-to-date and well-integrated. The upgraded 14-inch media display looks crisp, supports wireless Apple CarPlay and Android Auto, and is paired with a revamped 12.3-inch digital instrument cluster and a colour head-up display.

The cluster’s new layout is modern and much easier to read than the previous offering. The digital rear view mirror also earns its keep when the cabin’s packed with passengers or gear.

One of my favourite touches? The seat controls on the side of the front passenger seat. It makes quick work of moving the seat forward, especially helpful when you’ve got a kid clambering in with a school bag full of projects.

Access to the rear row is easy, but the stadium-style seating, where you're perched noticeably higher than those in the front, won’t be for everyone.

That said, the rear seats are plush and padded, though they lack side bolsters, which rear passengers might notice during cornering.

Legroom is generous and the hardened kickplates are a dream to clean when your child’s treating the seatbacks like a climbing wall.

My eight-year old gives the back seat a glowing review, thanks to its creature comforts, including rear climate control, directional air vents, seat heating/ventilation on the outboard seats, two USB-C ports and retractable sun-blinds, which are a crowd favourite in our household.

There are three top-tether anchor points, and the bench is wide enough to fit three child seats, though bulky booster seats might be tricky due to the raised seating height.

At the back, the boot is well set up for families, offering electrically folding rear seats, a 12-volt socket, flat loading floor, and a hands-free powered tailgate.

Under the floor, there’s a small compartment for your charging cables (Lexus throws in two!) and a usable 612L of capacity when all seats are in use. One downside, though, is the lack of a spare tyre as you just get a tyre repair/inflation kit.

There are four variants in the RX range, and we’re testing the 450h+ Sports Luxury AWD, which sits just below the flagship and packs in plenty of premium kit for its $123,500, before on-road costs, price tag.

That makes it slightly more affordable than its main PHEV rivals; the BMW X5 xDrive50e (from $125,885 MSRP) and the Volvo XC90 Ultra (from $124,466 MSRP).

The Volvo does offer seven seats to the Lexus’ five, which may matter for larger families, and both rivals also outdo the RX on electric-only driving range - 65km in the RX compared with 77km in the Volvo XC90 and a generous 101km in the BMW X5.

Still, the RX fights back with a seriously stacked features list. Highlights include a panoramic sunroof, 10-way powered front seats with heating and ventilation, electrically folding rear seats (also heated and ventilated in the outboard positions), and a heated, power-adjustable steering wheel. Sound is taken care of by a premium 21-speaker Mark Levinson surround system.

Technology has had a solid upgrade with the 14-inch touchscreen multimedia display, 12.3-inch digital instrument cluster, digital rearview mirror, colour head-up display, live traffic navigation, wireless Apple CarPlay and Android Auto, 4G connectivity, four USB-C ports, one USB-A port and a fast wireless charging pad.

There’s also access to the 'Lexus Connected Services' app, allowing you to remotely lock or unlock the vehicle, pre-set the cabin temperature via three-zone climate control, configure driver profiles and even use your phone as a digital key.

Practical features include keyless entry and start, rain-sensing wipers, dusk-sensing LED headlights, rear sun-blinds, intelligent seatbelt reminders for the first two rows, a child presence alert and a hands-free powered tailgate. However, due to the plug-in hybrid system there’s no spare tyre, just a tyre repair kit.

The C4’s single trim level has a single engine, and it’s a good one; a peppy 1.2-litre three-cylinder turbo.

It appears elsewhere in the Stellantis catalogue and has been refreshed for the 2022 model year with a new turbo and other small refinements. In the C4 it produces 114kW/240Nm and drives the front wheels via an Aisin-sourced eight-speed torque converter automatic transmission.

No dual-clutches or CVTs to be found here. This sounds good to me, but is it good to drive? You’ll have to read on to find out.

Under the bonnet the RX450h+ Sports Luxury runs a plug-in hybrid powertrain that pairs a 2.5-litre four-cylinder petrol engine with a CVT auto and dual electric motors - one on each axle. Together, they produce a total of 227kW of power, though Lexus doesn’t quote a combined torque figure.

Still, it’s quick off the mark for a large SUV, with a 0-100km/h time of 6.5 seconds. There’s more than enough grunt for daily driving and overtaking, even if it doesn’t quite match the outright power of its key PHEV rivals.

Despite the little turbocharged engine and the abundance of ratios in that transmission, the Citroen C4 disappointed me a little bit when it came to real-world consumption.

The official/combined consumption sounds reasonable at just 6.1L/100km, but after a week of driving in what I would consider realistic combined conditions my car returned 8.4L/100km.

While it’s not terrible in the wider context of small SUVs (a segment that is still packed with naturally aspirated 2.0-litre engines), it could be better.

The C4 also needs at least mid-shelf 95RON unleaded fuel and has a 50-litre fuel tank.

The plug-in hybrid system brings solid efficiency, with claimed fuel use of just 1.3L/100km. In real-world conditions (mostly urban driving with regular recharging) I managed a respectable 4.8L/100km, which makes a strong case for the hybrid set-up.

The fuel tank holds 55 litres and it's worth noting Lexus recommends using a minimum of 95 RON unleaded petrol to fill it.

Using our real-world economy figure you can expect a range in excess of 1100km between fills.

The RX450h+ is fitted with a relatively small 18.1kWh lithium-ion battery, supporting an NEDC electric-only range of up to 65km.

While that’s fine for short daily trips, it’s shorter than you'd ideally want in a family SUV of this size and it lags behind rivals like the BMW X5 and Volvo XC90 in this department.

Charging is simple enough. The RX uses a Type 2 charging port and accepts up to 7.0kW on AC power, which means a full charge takes around 7.5 hours, perfect for overnight top-ups. Lexus also includes an at-home charging cable and second adapter cable as standard, which is a thoughtful touch.

Driving the C4 is an interesting experience because it approaches the road a little differently from most of its rivals.

It really leans into Citroen’s newfound comfort-focused niche with the seating and suspension. This results in an overall experience that is a bit unique in the market, and quite pleasant, too.

The ride really is quite good. It’s not a fully hydraulic system but has dual-stage dampers that essentially smooth out corrugations and much of the nasty stuff that comes into contact with the tyres.

It’s odd because you can hear the big alloys crashing about on the road, but ultimately you feel little of it in the cabin. What’s more impressive is Citroen has managed to imbue the C4 with this floating-on-the-road feeling, while maintaining enough of a ‘real’ driving position to make it feel like you’re sitting in the car and not on it.

The overall result is impressive. The comfort extends to the seats, as mentioned, which really do still feel floaty and supportive even after hours on the road. It also extends to the steering, which has a very light tune. This is a bit unsettling at first, as it feels like it has a large dead-zone in the centre, but it is also speed dependent, so once you’re cruising it regains a significant amount of feel. You can also manually bring back a bit of firmness by setting this car to its Sport drive mode, which is unusually good.

This means you can have an ease of operation in tight quarters while maintaining enough feel to make it fun to drive when you need to ask more of it. Clever.

Speaking of fun, the revised 1.2-litre three-pot is a hoot. It has a distant but entertaining gruff tone under pressure, and surges forward with just enough urgency to not leave you really wanting for power.

It’s not what I would call quick, but it has a raucous attitude paired with a well-behaved torque converter auto to make it truly entertaining. When you push it, there’s a moment of turbo lag followed by a lump of torque, which the transmission lets you ride out before decisively snapping into the next gear. I like it.

Again, it's not quick, but it punches just enough above its weight to leave you with a smile when you stick your boot in. To have that in a car otherwise so focused on comfort is an unexpected pleasure.

The dash cluster could use some work, as could visibility out of the cabin. The small aperture out the rear and tall dash line could leave some drivers feeling a bit claustrophobic. While the engine is fun to engage with, the turbo lag could potentially be a source for annoyance at times, too.

Brief negatives aside, I think the C4's drive experience really brings something unique, fun, and comfortable to the small SUV space.

The RX450h+ delivers power that’s pert and prompt, with genuine bursts of acceleration that make driving fun. It’s always ready to go and there's no lag in stop-start traffic - which gives it a lively, dynamic feel around town.

The transition between petrol and electric power is seamless; you hardly notice the switch, which makes for a smooth, refined driving experience. The cabin is impressively quiet, even on the highway, making long trips comfortable and peaceful.

Regenerative braking isn’t adjustable and is subtle enough that many won’t notice it which is likely a plus for fans of traditional internal combustion engines who are making the PHEV leap.

The adaptive variable suspension adds a sporty edge to handling, letting you confidently take corners at speed. There’s some body roll but the RX never feels top-heavy or unsettled.

The steering carries the weight of the SUV but remains well-balanced and responsive. Overall, it’s a well-tuned machine that’s a pleasure to drive.

Maneuverability is a strong suit, too, thanks to a tight 11.8-metre turning circle and a clear, easy-to-use 360-degree camera system. Parking is easy-as-pie, which a lot of drivers will appreciate.

The RX earned a maximum five-star ANCAP safety rating in 2022, scoring highly across all protection categories: 90 per cent for adult protection, 89 per cent for child protection, 89 per cent for vulnerable road users, and 93 per cent for safety assist systems.

Standard safety gear includes eight airbags (dual front, front side, curtains, front centre, and driver’s knee) plus a comprehensive suite of driver aids. Standout features include emergency call functionality, child detection alert, side exit assist, front and rear collision warnings, park assist and emergency steering assist.

Additional tech covers blind-spot monitoring, driver attention monitoring, tyre pressure monitoring, daytime running lights, LED cornering lights, rear cross-traffic alert, lane departure alert, lane keeping assist, traffic sign recognition, and intelligent seatbelt warnings for the front two rows.

Visibility and parking are enhanced by a 360-degree camera system and front/rear parking sensors, while adaptive cruise control adds comfort on longer drives.

The rear seats have two ISOFIX mounts plus three top tether anchors, accommodating child seats safely. Autonomous emergency braking is active from 5.0 to 80km/h for pedestrians, cyclists, and backover and up to 180 km/h for cars.

Ownership has always been a tough topic for unusual Euros like the C4, and that seems to continue here. While Citroen offers a competitive five-year and unlimited-kilometre warranty for all its new products, it’s the service costs that will hurt the most.

While most Japanese and Korean brands are competing to really keep these numbers down, the C4’s average yearly cost, according to the provided schedule, comes in at an average of $497 for the first five years. That’s nearly double the cost of Toyota’s C-HR!

The C4 Shine will need to see a service centre once a year or every 15,000km, whichever occurs first.

The RX comes with a five-year, unlimited-kilometre warranty, which matches its key rivals but isn’t exactly class-leading by today’s standards.

Servicing is handled via a capped-price program, with each service costing $695. The intervals are well spaced at every 12 months or 15,000km, whichever comes first.

This Sports Luxury grade also includes a three-year complimentary 'Lexus Encore' membership, granting access to a handy phone app and member benefits at partners like Westfield and Ampol. On top of that, you get 24/7 roadside assistance for added peace of mind.