Citroen C4 vs Kia K4

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 Kia K4 GT-Line has a lot to offer - an interesting design, lots of features and a pleasant driving experience. It’s not without its quirks and there are times when a more powerful engine may have improved it for me as a long-term prospect as I do some big kays every year but it ticks the boxes as a friendly urban dweller.

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.

Have to admit I wasn’t convinced on the design of this new sedan at first as it can look a little out of sorts from certain angles. But the more time I spend with it, the more I appreciate its sharp lines and sporty rear shaping.

The small sedan market doesn't have a lot of options now because SUVs are so popular but it's nice to see a design that stands out and the fang-like LED light design at the front and rear, as well as the 18-inch alloy wheels make the K4 look very cool.

The rear doors look sleek because the handle has been hidden in the C-pillar and the K4 is particularly striking in our test model's 'Wave Blue' ($600 RRP) paint colour.

Head inside and you'll find a cabin that looks slick with a two-tone synthetic leather upholstery that feels supple underhand and a plethora of soft touchpoints under all the bits that touch.

The black headliner creates a posh space but the sunroof helps the cabin to feel airy when you need it to.

The dashboard isn't too wide, preferring a sharply linear shape and is headlined by a massive display panel that houses dual 12.3-inch screens and a 5.0-inch climate panel.

There is still a strong presence of plastics inside but you don’t tend to focus on them.

Unlike some other new cars hitting our market, the K4 hasn’t done away with its buttons and dials - and there’s enough to satisfy those who don’t like to rely on a screen for everything. The extra traditional element of the physical gear selector adds to its charm as well. 

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 K4 feels big for the class, especially compared to its nearest rivals and that translates to a cabin that feels adult-friendly in both rows. An impressive feat for a small sedan.

Access is the only time you will have moments of 'I should have opted for an SUV'. That's because you will get in your daily squats sliding in and out of the K4 due to its 140mm ground clearance.

The rear doors also feature a wide wing that juts out from the door handle and it catches your hip almost every time you go to close the door.

The wide front seats offer lots of comfort with thick padding and long under-thigh-support. The driver's side is powered with adjustable lumbar support but the passenger seat only offers manual adjustments, which is surprising for a top-grade model. However, both front seats enjoy heat and ventilation functions.

The back bench seat offers similar comfort to the front with seat padding and length but it's not terribly wide and two adults (or child car seats) will fit best.

Amenities and storage is decent for the class with each row enjoying four drink holders and two USB-C ports. Front rowers also get a wireless charging pad and 12-volt socket.

In the front there is a large glove box that fits more than just an owner's manual, a mid-size middle console and a centre console that features retractable cupholders to open up the space if you need to. A dedicated phone cradle with small spaces on each side rounds up individual storage for the front.

In the rear there are two map pockets, a small item cubby next to the USB-C ports and a pair of directional air vents, reading lights and a fold-down armrest.

The boot space is massive for the class at 508L (that's nearing mid-size SUV territory) but the aperture is narrow and I couldn't fit my big booster seat through the opening.

The boot is quite deep as well and you may find yourself climbing into it to retrieve items that roll into the back.

The rear bench seat has a 60/40 split which can help with storage and there is a temporary spare tyre underneath the floor.

While you don't get a powered tailgate in this model, the lid isn't heavy to operate and has a proximity opening function that keeps it practical when you have your hands full.

This just means when you approach and stay near the boot with the key fob on your person the boot lid will pop open for you.

The 12.3-inch touchscreen multimedia system looks great with crisp graphics and a responsive touchscreen. The menus are in an easy-to-understand layout which you'll get accustomed to in no time. The 5.0-inch climate display sits to the right of this system and it's nice to have it on display all the time.

The 12.3-inch digital instrument cluster isn't all that customisable but it's easy to read with large text and a small menu screen that shows nav directions, trip info or a compass.

The built-in satellite navigation system is easy to get going and to cancel a route guidance, it's a one button affair which is great for when you're on the go.

The system features wired and wireless Apple CarPlay and Android Auto. The CarPlay is simple to connect to and retained a steady connection this week with feedback from my callers that my voice was clear on calls.

The new K4 sedan is offered in four grades - the base-model S which has an optional 'Safety Pack' available, the mid-spec Sport and Sport+ grades and the flagship GT-Line, which is the model on test for this review.

The GT-Line is sharply priced at $42,990, before on road costs. This positions it in the middle of its small sedan rivals, the Hyundai i30 N Line Premium ($41,500 MSRP) and the Mazda3 Astina ($43,310 MSRP).

What the K4 GT-Line has going for it over its peers is a standard specification list that features some heavy-hitting technology.

This includes dual 12.3-inch displays, a 5.0-inch climate display, built-in satellite navigation with 10-years' of map updates, wireless/wired Apple CarPlay and Android Auto and dual-zone climate control.

Charging is taken care of by two USB-C ports for each row but the front row also enjoys a 12-volt socket and fast wireless charging pad in the dedicated phone cradle.

There's also an eight-speaker Harman Kardon sound system, over-the-air updates, digital radio, AM/FM radio, Bluetooth connectivity, and a 'Sounds of Nature' soundscape for added ambience.

The Kia Connect app is also included and this allows user access to the emergency call functionality (e-Call), remote control functions for the vehicle, as well as vehicle status monitoring.

Premium equipment includes a tilt and slide sunroof with electric sunshade, two-tone synthetic leather upholstery, heated and ventilated front seats, an electric drivers seat (with two-position memory function and adjustable lumbar support) and a heated steering wheel.

For a small sedan, it comes packed with features!

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.

The flagship grade is front-wheel drive and has a 1.6-litre four-cylinder, turbo-petrol engine that produces up to 142kW of power and 265Nm of torque giving this a more powerful presence than its non-turbo siblings (which only produce up to 112kW/192Nm).

However, while the power is adequate for the GT-Line there are times when the engine sounds like it's working a bit too hard.

The eight-speed torque-converter automatic transmission can also become flustered as it moves through the lower gears, especially when you’re accelerating quickly.

On the whole, the power delivery and outputs are more than enough for a city environment and the odd road trip.

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.

With an official combined (urban/extra-urban) cycle fuel usage figure of 6.7L/100km and a fuel tank size of 47L, this model has a theoretical driving range of 701km. That does sit around 80 kays less than some of its rivals but it’s still sufficient for those wanting to do the odd road trip!

My on-test fuel usage has popped out at 9.2L/100km, which is based on figures achieved at the pump (32.05L) and my km travelled (348km).

I’ve done mostly urban trips this week with one longer open-road drive and overall I’m not too surprised by that figure because I’ve been pushing it hard but it could be better.

The K4 is a simple gal because Kia recommends a minimum 91 RON unleaded petrol to be used for all models.

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.

As mentioned earlier, the power is adequate to move this car around on the open-road but you have to be a little aggressive on hills to keep your speed consistent.

It’s not always quick off the mark, though, and you’ll notice that when you have to cross traffic or enter a roundabout - so allow for extra car lengths. Once you get going, it’s responsive in the city.

The steering is sports-stiff and so is the suspension. This makes the handling feel nimble in turns and sure-footed when doing quick lane changes but you hear and feel every bump in the road. 

On-road comfort is okay around the city but the road noise is very loud inside the cabin and is particularly noticeable at higher speeds. You’ll have to raise your voice to chat to passengers in the back when you're on the highway.

The K4 has a small turning circle of just 10.7m and you can easily do a U-turn in spaces that others might have to do a three-pointer. This made the K4 feel friendly in small car parks and on ramps.

The direct steering makes it easy-enough to park, as does the reversing camera and front/rear parking sensors but I’m pretty disappointed that at the top grade-level, you miss out on a 360-degree camera system (tsk, tsk, Kia).

The Kia K4 has just been launched and hasn’t been tested by ANCAP yet, so is unrated but Kia is hustling to get it tested so it can join in on their strong five-star performance record. The K4 has seven airbags, including a front centre airbag.

The K4 GT-Line has all of the bells and whistles when it comes to safety equipment and includes the big-ticket items like blind-spot monitoring and collision avoidance, intelligent seatbelt warning (all seats), rear cross-traffic alert, front cross-traffic alert, lane keeping aid, lane departure alert, leading vehicle alert, emergency call functionality, side exit warning, rear occupant alert, traffic sign recognition, driver monitoring and alert, LED DRLs, dusk-sensing LED headlights, front/rear parking sensors and a reversing camera with dynamic guidelines.

The K4 GT-Line has AEB with forward collision warning, car, pedestrian, cyclist, and junction crossing detection.

The rear seat has two ISOFIX child seat mounts on the outboard positions and three top tether anchor points but two seats will fit best.

Kia has become well-known for having annoying sound alerts in their cars and while the K4 has them too - you can easily disable the most annoying one, the traffic sign recognition, by holding the steering wheel volume button in for a few seconds.

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 K4 GT-Line is offered with Kia’s seven-year/unlimited-kilometre warranty. That’s a pretty good term for the class and there is a seven-year capped price servicing program for a flat $3877 (averaging $554 per service), which is slightly more expensive than others in the class.

Servicing intervals could get annoying if you do big kays every year as they're spaced at every 12 months or 10,000km, whichever occurs first.