The compact SUV segment is crowded with tempting used options, and the Mitsubishi Eclipse Cross vs Kia Stonic is the kind of comparison that looks sensible on paper. Both are five-door crossovers in the same rough size class, priced broadly similarly on the used market, and aimed squarely at buyers who want something higher off the ground without straying into full family SUV territory.

But 'similar on paper' covers a multitude of sins. The Eclipse Cross carries a risk that has nothing to do with the car itself: Mitsubishi withdrew from new car sales in the UK in 2021, and that decision casts a long shadow over every used example on sale today. Parts supply is tightening, dealer network support is shrinking, and specialist knowledge is becoming rarer and more expensive to access.

The Stonic, meanwhile, is a perfectly decent Kia that nobody tends to get excited about. Reliable, well-built, but short on personality and noticeably compromised in places where buyers often discover too late. This comparison won't declare either car brilliant. What it will do is tell you which is the lesser headache, what faults to watch for, and whether either deserves a place on your shortlist at all.

The Mitsubishi Eclipse Cross used buying guide

The Eclipse Cross arrived in the UK in 2018 as Mitsubishi's attempt to shore up its flagging presence in the crossover segment. It looked distinctive — if a touch busy — with its coupe-style roofline, split rear window, and contrasting body cladding. Underneath, it was broadly conventional: a 1.5-litre turbocharged petrol engine driving the front wheels through a CVT gearbox, with an all-wheel-drive version available in higher trim levels.

Used prices currently start from around £5,500 for early 2018 examples with higher mileage, rising to £20,000 for later PHEV variants in excellent condition. On paper, there's genuine value here — particularly if you want a compact SUV with real all-wheel drive at a reasonable price.

The problem is the context you'd be buying into.

Eclipse Cross: the ownership reality

Beyond the parts question, the Eclipse Cross is actually a reasonably likeable car. The 1.5T engine produces 163ps and pulls adequately, though the CVT transmission saps much of that urgency in urban driving. Choose the manual if you want something with a bit more life to it. Fuel economy is officially around 36–38mpg for the petrol, with real-world results typically closer to 32–35mpg on mixed driving.

The interior is a mixed bag. Material quality is decent but not class-leading, and the infotainment system — particularly on pre-2020 cars — feels dated against current rivals. The touchpad control interface, which replaces a conventional touchscreen on some models, is genuinely difficult to use while moving and was widely criticised when the car was new. Later facelift models (from 2021) improved the setup considerably, but supply of those is more limited and prices are higher.

Where the Eclipse Cross genuinely earns praise is practicality. The 448-litre boot is meaningfully larger than many rivals in this class, and the rear seats have reasonable legroom for a car of this size. The split tailgate design looks clever but confuses first-time users and can feel flimsy over time. Rear visibility through that split window is genuinely poor, and parking sensors or a camera — standard on higher trims — are near-essential rather than optional.

The PHEV variant (2.4-litre, introduced in 2018) has attracted some specific attention for battery degradation on high-mileage examples, and a replacement battery pack is an expensive proposition. If you're considering a PHEV Eclipse Cross, commission a battery health check alongside the standard inspection. Stick to cars with less than 60,000 miles if possible.

The Kia Stonic used buying guide

The Kia Stonic is the kind of car that gets bought sensibly and regretted rarely. Launched in 2017 as Kia's entry-level crossover, it sits below the Sportage in the range and competes with the likes of the Ford Puma, Nissan Juke, and SEAT Arona. Prices on the used market currently start from around £4,000 for early examples with high mileage, with cleaner 2020–2022 cars sitting in the £10,000–£14,000 range.

The Stonic is built on the same platform as the Hyundai Kona, shares engines with Kia's broader range, and is generally considered one of the more dependable options in the small crossover class. The 1.0-litre T-GDi turbocharged petrol is the engine to have: 99ps or 118ps depending on state of tune, reasonable fuel economy of around 40–44mpg in mixed use, and enough performance for everyday driving. It's not exciting, but it's honest.

The 1.4-litre naturally aspirated petrol is less appealing — underpowered and thirstier than the turbo unit without giving anything back. The 1.6 CRDi diesel makes more sense if you cover significant motorway mileage, but at this class and size it's arguably redundant given the running cost advantages have narrowed considerably.

Kia Stonic: the ownership reality

The Stonic's biggest ownership advantage is invisible: Kia has a full UK dealer network, readily available parts, and a reputation for backing its cars with aftersales support. If something goes wrong, finding a competent technician who knows the platform is straightforward. That peace of mind has a real monetary value that doesn't show up in the purchase price but absolutely shows up in your stress levels.

Kia also introduced a 7-year, 100,000-mile manufacturer warranty from 2015 onwards. On the used market, this means any Stonic registered after April 2015 — covering the entire first-generation run — may still have a portion of that warranty remaining if the mileage allows. Check carefully: the warranty is non-transferable as sold by Kia dealers, but some used car dealers offer their own backed warranty products, so read the small print.

In terms of common faults, the Stonic is not without issues. The 7-speed dual-clutch transmission (DCT), fitted to some automatic versions, has drawn complaints about jerky low-speed behaviour — particularly on 2017 and 2018 cars. Kia issued software updates to address some of the worst behaviour, but it's worth a test drive in slow traffic before committing if you're looking at an automatic. The 6-speed manual is the smoother, more dependable choice and the one most buyers pick.

The Stonic's interior quality is good for its class, if not exceptional. The infotainment systems on post-2021 facelift models are a significant upgrade over the original — Android Auto and Apple CarPlay are standard, the screen is larger, and the interface is more intuitive. Pre-facelift cars are still perfectly usable, but they feel their age compared to more recent rivals.

The one area where the Stonic genuinely disappoints is space. A 352-litre boot is on the small side for this class — the Eclipse Cross beats it by nearly 100 litres — and rear passenger legroom is tight for anyone over six feet. It's a car that works best as a solo driver's daily or a couple's runabout. Young families with buggies and luggage may find it too limiting.

Mitsubishi Eclipse Cross vs Kia Stonic: the key comparison dimensions

Purchase price and used value

The Stonic is more plentiful on the used market — over 1,400 listings compared to around 238 for the Eclipse Cross at the time of writing. Greater supply typically keeps prices competitive and gives buyers more negotiating room. Entry-level Stonics start from around £4,000–£4,500 for high-mileage early cars; the Eclipse Cross starts slightly higher at £5,500–£6,000 for comparable mileage.

The Eclipse Cross has depreciated faster than most mainstream rivals — partly because Mitsubishi's withdrawal dampened buyer confidence, and partly because supply is genuinely thinner. That faster depreciation can look like a bargain, but it's actually a warning signal. A car that has lost value faster than its competitors usually has a reason.

Running costs

Insurance is cheaper on the Stonic, which sits in groups nine to 15 depending on engine and trim. The Eclipse Cross occupies groups 13 to 19 — a meaningful difference for cost-conscious buyers, particularly those under 25. Road tax (VED) is comparable between the two petrol variants, and both return similar real-world fuel economy of around 33–40mpg in mixed driving.

Servicing costs are where the two diverge most sharply. The Stonic can be serviced at any Kia dealer or competent independent garage using widely available parts. The Eclipse Cross requires parts that are already thinning in supply; expect to pay a premium for some components, and factor in the possibility of longer wait times if something fails. This is less of an issue for the consumable items — brakes, tyres, filters — and more pressing for anything powertrain or electrical.

Reliability

The Eclipse Cross has no notorious mechanical gremlins on the record in the way that, say, the Fiat 500X's dual-clutch gearbox or the Land Rover Discovery Sport's timing chain does. The 1.5T engine is generally sound, and the PHEV system has been broadly dependable when maintained correctly. The CVT is the most common source of complaints, though typically about the driving experience rather than outright failure.

The Stonic's reliability record is similarly clean. The 1.0 T-GDi engine has been used across many Hyundai and Kia models and has a solid reputation. The dual-clutch automatic's early jerkiness was a software issue rather than a mechanical one, and most have been updated. Avoid the very earliest 2017 cars if you want an automatic; 2019 onwards is safer territory.

Both cars score adequately on reliability, which means the tiebreaker is what happens when something does go wrong. And on that question, Kia wins decisively.

Practicality and driving experience

For practicality, the Eclipse Cross has the edge. Its 448-litre boot is genuinely useful and the rear seat space is acceptable. The coupe roofline pinches headroom slightly in the back, and the split tailgate design is more awkward than it looks in promotional images. But for loading shopping, a weekend bag, or a pushchair, it's more accommodating than the Stonic.

The Stonic's 352-litre boot is a persistent disappointment. It's among the smaller boots in this class, and the high load lip doesn't help. Where the Stonic does better is in the driving experience: the 1.0 T-GDi petrol feels lighter and more responsive than the Eclipse Cross's 1.5T through a CVT. The ride is settled without being soft, steering is well-weighted, and it's generally more enjoyable to thread through traffic.

Neither car is particularly exciting to drive. But if the daily commute matters to you, the Stonic is the marginally more engaging choice.

What to check when viewing either car

If you're viewing a used Mitsubishi Eclipse Cross, start with the evidence of Mitsubishi-dealer servicing in the history file. Cars serviced exclusively at independent garages aren't automatically suspect, but genuine Mitsubishi dealer stamps — particularly through to the last service — suggest the previous owner took the franchise network more seriously. Check the CVT fluid condition and ask when it was last changed (Mitsubishi specifies replacement every 45,000 miles, though many cars arrive at dealers with it long overdue). Inspect the split tailgate mechanism carefully — the glass section is prone to seal degradation, and replacement parts are becoming harder to source. On PHEV versions, request evidence of charging equipment and ask the seller to demonstrate a full charge cycle; battery capacity should read at or close to the rated figure.

For the Kia Stonic, the service history check is more straightforward. Look for regular stamps at the correct intervals — Kia specifies annual services or every 10,000 miles, whichever comes first. On automatic cars, test the DCT gearbox in a car park at low speed, inching forward and braking: if it judders or hunts for gears, it may need a software update or, in rare cases, clutch attention. Check the 7-year warranty status with the current mileage before you buy — if there's transferable coverage remaining, that's a meaningful bonus. Look carefully at front tyre wear: uneven consumption can indicate tracking issues that suggest a prior knock, which is more common on urban-use cars that encounter kerbs regularly.

Which used SUV should you buy — or avoid?

The honest answer is that neither car is a trap, but one is substantially lower risk than the other.

The Mitsubishi Eclipse Cross vs Kia Stonic comparison ultimately comes down to one question: how much does manufacturer support matter to you? If you're buying a used car you intend to keep for three to five years, the Eclipse Cross is a gamble that parts availability won't become a serious problem during your ownership period. For many buyers, it won't. But it's a risk that doesn't exist with the Stonic, and you're not being compensated meaningfully for taking it — the purchase price difference at equivalent ages and mileages is modest.

The Eclipse Cross makes most sense if you genuinely need the larger boot or AWD capability, you have a good independent Mitsubishi specialist nearby, and you're buying a younger example (2021 onwards) with full history. In those conditions, it's a reasonable purchase.

The Stonic makes sense for almost everyone else. It's not exciting, it compromises on space, and the automatic gearbox needs testing carefully. But it's a Kia: parts are everywhere, the network is active, the 1.0 T-GDi engine is one of the more durable units in its class, and the potential for remaining warranty coverage is a genuine bonus. For a used small SUV that you want to buy, drive, and forget about, the Stonic is the more sensible choice.

If neither appeals, the Fiat 500X vs Jeep Renegade comparison is worth reading to understand what genuinely problematic used SUVs look like — and for broader context on which used SUVs are best avoided, the used SUVs to avoid guide covers the segment comprehensively.

Live listings: what the used market looks like right now

Based on current UK listings, here is a snapshot of what both cars look like on the used market in 2026.