Kia K4 vs Mitsubishi ASX

What's the difference?

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.

The Mitsubishi ASX ES Street can more than handle being an urban dweller. The Street style pack makes this model stand out and the cabin is practical enough that it’s a good alternative for smaller families in the city. I get why the ASX is popular and I like the basic and traditional nature of this model on most fronts but not for the safety and tech. Not in this day and age against all of the well-equipped rivals it faces.

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 ES Street doesn’t change the ASX fundamentals but it is styled differently and the Street package adds a black front spoiler and tailgate protector with red accents, black door handles, stainless steel door scuff plates, and decals across the side panels and rear. 

The interior sees almost no changes from the ES grade but the traditional plastic gear shifter and steering wheel are swapped out for an aluminium and leather-trimmed gear shifter and leather-wrapped steering wheel, which is a nice upgrade.

The dashboard is headlined by the tried and true (and old) 8.0-inch touchscreen multimedia system but this is a vehicle that likes tradition.

You have lots of physical buttons, dials and even a handbrake. There’s no push-button starter or digital instrument panel. If you want to move or change something, it’s going to be manual adjustment. It’s basic but there is something charming about that.

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 size of the cabin is the most practical aspect of it and it is spacious for the class. Both rows enjoy decent head- and legroom and it's fairly easy to get in and out of from the front row but the back row has narrow door apertures.

The cloth seat upholstery on the seats looks nice but fatigue can set in early on a long trip due to a lack of lumbar support for the front and a lack of heavy padding overall.

The individual storage up front is great for the class with a deep middle console and glove box, two big cupholders, as well as a large drink bottle holder in each door. There is also a storage tray in front of the gear shifter for smaller items like a phone or sunnies.

Storage is minimal in the rear with two cupholders in a fold-down armrest and one single map pocket... and that's it for amenities in general. There's no directional air vents or USB ports in the back.

However, there is plenty of room for two car seats, if you had a couple of kids in tow.

Technology feels and looks outdated with the only charging options being two USB-A ports and two 12-volt sockets up front. It would be nice to see faster USB-C ports and a charging pad for the price.

The 8.0-inch touchscreen multimedia system hasn’t changed. It’s simple to look at and operate. It can catch the light, which makes it hard to see at times while on the go but is otherwise responsive.

It’s easy to connect to the wired Apple CarPlay and Bluetooth but the phone call quality was hit and miss. Sometimes it sounded tinny and sometimes it crackled.

Rounding out the cabin, the boot offers good capacity for the class at 393L and you can bump it up to 1193L if you fold the rear row. The boot aperture is wide and the level loading space means it’s super easy to fit larger items in.

The rear row also has a 60/40 split and there’s a space-saver spare tyre underneath the floor. While the ES Street doesn’t get a powered tailgate, the lid isn’t heavy to operate.

There are six grades for the ASX and our test model is the ES with the Street accessory pack which makes it $30,490 before on-roads costs. That’s $2500 more than the standard ES and you’re only getting styling changes on a grade that sits second from the entry-level model.

The ES Street is more affordable than the better-specced Kia Seltos Sport (FWD) which sits at $33,050 MSRP but compared to its Chinese rivals, it’s starting to feel pricey. The MG ZST Vibe is priced from $26,490 MSRP and the GWM Haval Jolion Lux from $28,790 MSRP - both of which have more features and safety equipment installed.

Standard equipment for the ES Street includes an 8.0-inch touchscreen multimedia system with wired Apple CarPlay and Android Auto, Bluetooth as well as AM/FM and digital radio.

The ES Street also features a reversing camera, LED headlights and daytime running lights, LED front fog lights, 18-inch alloy wheels, and a space-saver spare wheel. There are two USB-A ports, manual air-conditioning, and black cloth upholstery.

The Street package adds a black front spoiler and tailgate protector with red accents, black door handles, stainless steel door scuff plates, aluminium and leather-trimmed gear shifter and leather-wrapped steering wheel instead of plastic.

The ES now comes with lane departure warning.

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.

The ES has a 2.0-litre four-cylinder petrol engine that produces 110kW of power and 197Nm of torque.

That's plenty enough for urban driving but don’t expect any feeling of zippiness.

The ES Street is a front-wheel drive and has a continuously variable transmission (CVT) but you can option a manual transmission on the base GS grade, if that’s your vibe.

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.

The official combined cycle fuel consumption figure is a low 7.6/100km and my real-world use came out at 9.1L after a fair mix of urban and open-road driving. While not super surprised with the outcome, I was hoping for better efficiency.

Based on the official combined fuel cycle and 63L fuel tank, expect a theoretical driving range of up 829km – which is great for such a small SUV.

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 ES Street delivers adequate power to make it feel within the realm of fun in the city but it starts to feel lacklustre once you hit the open road. Put your foot down and the engine whines pitifully but you never worry about not getting there - it just likes to complain.

The suspension is on the right side of firm to get road feedback but not be bothered by it. You will feel bumps but not wince when you go over them. 

However, the ASX feels very light when you have heavy winds and the car moves around a lot at higher speeds, which I found to be unnerving at times.

Surprisingly, the ASX offers a pretty refined cabin experience in terms of noise. There is a constant low hum from the engine but wind and road noise aren't too bad and you can easily chat and listen to music without feeling like your senses are battered at the end of a trip. 

The ES Street is a fairly comfortable cruiser in tight city streets with responsive steering and a small footprint. This makes it easy to park and while the reversing camera isn’t the best quality, you know where this car starts and ends, so it’s not a big deal.

At the time of this review, the current model year Mitsubishi ASX has not been tested with ANCAP and is unrated, but all pre-2023 models achieved a five-star rating under the 2016 protocol.

The ES Street has seven airbags, including a driver’s knee airbag, but misses out on the newer front centre airbag we're seeing on newer models.

Standard safety equipment for the ASX ES Street includes forward collision warning, DRLs, hill-start assist, ABS, lane departure alert, cruise control, engine immobiliser, child-proof locking on rear doors, and a reversing camera.

Unfortunately, all of its rivals outclass the ASX on standard safety equipment and this model misses out on biggies like lane keeping aid, blind-spot monitoring and rear cross-traffic alert.

The ASX has ISOFIX child seat mounts and three top tether points but two seats will fit best.

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.

The ASX comes with a five-year/100,000km warranty, which can be extended to 10 years/200,000km, provided the vehicle is exclusively serviced by Mitsubishi dealers and on schedule. It's a warranty that is hard to beat, although MG just announced a 10-year/250,000km warranty and that's not conditional on where it is serviced.

The ASX also comes with 10 years of capped-priced servicing and the average cost is $502 per service.

Servicing intervals are reasonable at every 12 months or 15,000km, whichever occurs first.