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For a purchase you can make on a fully documented specification today, the BYD Dolphin is the safer choice. Its European technical sheet states the range, charging, dimensions, outputs, boot capacity and equipment. The AION UT Cross is the more appealing prospect if you want a 20 mm higher crossover stance, roof rails, body protection, a quoted 440-litre boot and GAC’s longer headline warranty—but AION Auto UK says it is coming in early 2027, with UK pricing and the final specification still to be announced.
That makes this comparison less about a clear winner and more about timing. The Dolphin is an established, specified electric hatchback in current regional sales material; the UT Cross offers a potentially more useful shape for outdoor equipment, but some of the figures available today describe a show car or the regular UT rather than a final UK production trim.
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At a glance
| Name | Best for | Key spec | Checked |
|---|---|---|---|
| BYD Dolphin | Buying now on a complete published specification | 427 km WLTP combined; 110 kW DC; 364-litre boot | Nov 2026 |
| AION UT Cross | Raised crossover stance and carrying outdoor gear | 20 mm extra ride height; quoted 440-litre boot; 60 kWh battery; 204 PS shared with UT | Nov 2026 |
The UT Cross’s UK price, trim range, final dimensions, official market-specific WLTP figure and full equipment list are not yet published. The figures in the table and comparison below should therefore be read with that qualification.
Should you wait for the AION UT Cross or buy a BYD Dolphin now?
Buy the Dolphin now if you need a known car, known specification and current availability. Wait for the UT Cross if the higher seating position, protective cladding, roof rails, larger stated boot and potential warranty advantage matter more than having a confirmed price and final equipment list.
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AION Auto UK announced the UT Cross on 12 October 2026 after its debut at the 2026 Paris Motor Show, targeting an early-2027 launch. Until the UK announcement fills in the missing details, a buyer cannot make a firm value comparison against a specific Dolphin trim. Deposits, finance offers, delivery dates and standard equipment should be treated as provisional unless a local retailer provides a written, market-specific offer.
The Dolphin’s published European sheet removes much of that uncertainty. It gives a 427 km combined WLTP range, 11 kW AC charging, 110 kW maximum DC charging, a 10–80% DC time of 36 minutes, and a 30–80% time of 26 minutes. It also states the motor output, acceleration, dimensions and boot volumes. Those are rated or manufacturer figures, not independent real-world results.
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The confirmed concept is a light-outdoor crossover EV based on the AION UT hatchback. AION Auto UK says it rides 20 mm higher than the regular UT, uses 225 mm tyres, adds black wheel-arch and lower-body protection, and has roof rails. The same announcement quotes a 440-litre boot and says there is room for front and rear passengers.
The Cross shares the regular UT’s stated 204 PS powertrain and 60 kWh battery. A standard heat pump and heated steering wheel are also part of the UK announcement. These details indicate the Cross is intended to be a practical city car with some weekend-adventure flexibility, rather than a dedicated off-road vehicle.
GAC’s global Paris material describes the model as combining “the flexibility of a hatchback, the spaciousness of an estate, and the strong off-road capability of an SUV.” It reports 71% high-strength steel and seven airbags, including a 2.1-metre V-shaped curtain airbag. GAC’s stated European warranty is eight years or 160,000 km for the whole vehicle and eight years or 200,000 km for the power battery. The exact UK warranty wording, exclusions and transfer conditions still need to be checked in the local contract.
The Austrian importer has published provisional show-version information: a 60 kWh battery, up to 400 km WLTP range, 30–80% charging in about 24 minutes, a 2,750 mm wheelbase, a 440-litre trunk and a 14.6-inch centre display. Because those figures are identified as show-car or market information, they should not be assumed to be universal UK production specifications.
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The Dolphin has the more complete published specification. The UT Cross inherits useful reference points from the regular UT, but AION has not yet released a final Cross data sheet for the UK.
| Specification | AION UT Cross | BYD Dolphin (European sheet) |
|---|---|---|
| Positioning | Raised light-outdoor crossover hatchback | Electric hatchback |
| Motor | 204 PS / 150 kW, shared with regular UT | 150 kW maximum |
| Torque | Not published for the Cross; regular UT reference is 210 Nm | 310 Nm |
| Drive | Regular UT reference: front-wheel drive | Not stated in the cited European sheet |
| Battery | 60 kWh stated for the Cross/show version | European sheet does not state usable capacity; a New Zealand sheet lists 44.9 kWh and 60.48 kWh regional versions |
| WLTP range | Up to 400 km in Austrian provisional information; final UK figure pending | 427 km combined; 559 km city |
| AC charging | Regular UT reference: 11 kW three-phase | 11 kW maximum |
| DC charging | Regular UT reference: 87 kW; 30–80% in 24 minutes | 110 kW maximum; 10–80% in 36 minutes and 30–80% in 26 minutes |
| Boot | 440 litres quoted by AION Auto UK | 364 litres with seats up; 1,329 litres with seats folded |
| Wheelbase | 2,750 mm in published show-version information | 2,700 mm |
| Length | Final Cross dimension pending; regular UT reference is 4,270 mm | 4,290 mm |
| Warranty | GAC Europe headline: eight years/160,000 km vehicle, eight years/200,000 km battery | Terms vary by market; check the local BYD contract |
Do not compare the 400 km provisional Cross figure directly with the Dolphin’s 427 km rating as though they were the same final test result. The Cross number comes from an Austrian show-version announcement, while the Dolphin figure is from a 2025 European specification sheet. Battery chemistry, wheel size, software calibration and trim can all affect the final certified result.
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Which has the better range in everyday driving?
On published certification, the Dolphin currently has the clearer range advantage. BYD lists 427 km combined WLTP and 559 km in the city cycle for the European model, with combined consumption of 15.9 kWh/100 km and city consumption of 12.1 kWh/100 km.
AION’s regular UT launch material quotes up to 430 km WLTP combined, but that is the regular UT, not automatically the raised UT Cross. The provisional Austrian Cross information says up to 400 km WLTP. Until AION publishes the final UK certificate, the Cross could end up nearer the regular UT figure, nearer the show-version figure, or vary by wheel and trim.
Neither WLTP figure predicts a guaranteed motorway distance. Cold weather, cabin heating, speed, roof-mounted equipment, tyre pressure and payload reduce achievable range. The Cross’s standard heat pump may help limit winter heating losses, but its effect depends on outside temperature and operating conditions. No independent real-world range test is available in the supplied evidence.
For a commute, both cars’ stated ranges are ample if home charging is available. For frequent long motorway trips, the Dolphin’s complete 427 km rating and faster documented DC capability make planning easier today. A buyer considering the Cross should request its final WLTP result, usable battery capacity and winter range guidance before signing.
Which electric hatchback charges faster?
The Dolphin has the fastest documented DC charging hardware. BYD’s European sheet specifies up to 110 kW DC, 10–80% in 36 minutes and 30–80% in 26 minutes. The regular UT reference specification lists 87 kW DC and 30–80% in 24 minutes; that shorter percentage window is not directly comparable with the Dolphin’s 10–80% time because the starting percentages differ.
Both the regular UT and the European Dolphin list 11 kW AC charging. On a suitable three-phase home or workplace supply, that is enough to refill an overnight charge comfortably for most daily driving. GAC lists 0–100% AC charging for the regular UT at six hours 50 minutes.
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The charging curve matters as much as the peak number. A vehicle may briefly reach its maximum before tapering as the battery fills, so a 110 kW car is not guaranteed to average 110 kW over a session. Ask the retailer for the final Cross charging curve or an official 10–80% time rather than relying on the 30–80% provisional statement alone.
Is the AION UT Cross bigger inside than the BYD Dolphin?
The Cross has the stronger published boot claim, while the Dolphin has the more useful measured split of seats-up and seats-folded capacity. AION quotes 440 litres for the Cross; BYD lists 364 litres behind the rear seats and 1,329 litres with them folded.
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The Cross’s 2,750 mm wheelbase, reported for the show version, is 50 mm longer than the Dolphin’s 2,700 mm wheelbase. That could support generous rear legroom, but wheelbase alone does not prove interior space: seat design, floor height, roof shape and battery packaging also matter. AION says the Cross accommodates front and rear passengers, but final UK interior measurements are not published.
For luggage, the choice depends on shape as well as litres. Roof rails make it easier to carry bulky equipment externally, but they add aerodynamic drag and can reduce range. The Dolphin’s 1,329-litre folded capacity is a useful figure for flat loads; check the loading floor, rear-seat split, tailgate opening and maximum payload if you regularly carry bikes, camping boxes or a dog.
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The UT Cross is the more natural fit for outdoor-oriented use. Its raised ride height, 225 mm tyres, black lower-body protection, roof rails and quoted 440-litre boot are all aimed at carrying equipment and coping with rougher access roads. Those features improve practicality and approachability, but they do not turn the car into a four-wheel-drive off-roader.
GAC’s description of “strong off-road capability” should be read in context: the available regular UT reference specification is front-wheel drive, and no Cross four-wheel-drive system is confirmed. Gravel tracks, wet grass and uneven campsite entrances are different from rock crawling or deep mud. Confirm ground clearance, drive layout, tyre specification, towing limit and underbody protection in the final UK sheet.
The Dolphin can still handle ordinary camping duties when its rear seats are folded. Its larger published folded-load volume may be useful for long, flat items, while a portable charging cable and vehicle-to-load capability are listed on a regional BYD sheet. Availability of V2L hardware, adapters and software permissions can vary by market and trim, so verify that equipment before planning to power lights or appliances.
Which one has the better warranty?
On the headline European figures, the AION has the stronger coverage. GAC states eight years or 160,000 km for the whole vehicle and eight years or 200,000 km for the power battery. Those are manufacturer-published European terms, not a guarantee of the final contract in every country.
Warranty comparisons should include battery-capacity guarantees, servicing requirements, corrosion cover, roadside assistance, exclusions, transferability and the calendar or mileage limit that ends coverage first. A longer battery term is valuable only if the capacity threshold and claim process are clear. Obtain the full UK warranty booklet when the Cross goes on sale.
The cited BYD European Dolphin sheet does not provide a warranty schedule in the supplied material. Local BYD terms may differ by country and trim, so compare the written contract rather than relying on a dealer’s verbal summary.
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What do the two cars cost?
A reliable price comparison is not possible yet. AION Auto UK has said UK pricing and the complete specification will be announced later, ahead of the early-2027 launch. Without a Cross price and trim walk, it is impossible to calculate equipment-adjusted value against a particular Dolphin version.
When the AION price arrives, compare like for like: battery size, heat pump, heated steering wheel, driver-assistance systems, charging cables, wheel and tyre package, metallic paint, warranty and servicing. A lower list price can disappear if a desired feature is optional or bundled into a higher trim.
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For the Dolphin, request a written on-the-road quote that identifies the battery version, delivery timing, included cable, charging equipment, warranty and any local incentives. The New Zealand specification demonstrates that Dolphin battery sizes and outputs vary by region: Essential uses a 44.9 kWh battery with 70 kW/180 Nm and 340 km WLTP, while Premium uses 60.48 kWh with 150 kW/310 Nm and 427 km WLTP. Do not import those regional trim assumptions into another market.
What home charger do you need?
An 11 kW three-phase Type 2 home charger is the natural match for the published AC capability of both cars, provided your property has the required electrical supply. The regular UT and European Dolphin each list 11 kW AC charging, and the regional Dolphin sheet specifies Type 2 AC hardware plus a portable charging cable.
- Check the car’s inlet and cable. Confirm that the local trim uses Type 2 AC and whether a cable is included.
- Check the electrical service. An 11 kW unit normally needs a three-phase supply and appropriate current capacity; a single-phase home may be limited to a lower rate.
- Have the installation surveyed. The installer should verify the consumer unit, cable route, earthing, protection devices and local regulations.
- Choose load management if needed. Dynamic load balancing can reduce the risk of overloading a constrained household supply.
- Confirm smart-charging compatibility. If you use time-of-use electricity, check that the charger and vehicle can schedule charging reliably.
Do not order equipment solely from a headline kW figure. Connector type, phase supply, installation rules, cable length and local approval requirements must be confirmed for the specific car and home.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What are the main drawbacks of each car?
AION UT Cross drawbacks: there is no confirmed UK price, final trim list, final UK WLTP figure or complete production specification yet. The 400 km range and 2,750 mm wheelbase come from provisional show-version information, while several performance figures are inherited from the regular UT. Early buyers also need to consider how quickly the new model’s dealer and service network will become established in their area.
BYD Dolphin drawbacks: its 364-litre seats-up boot is smaller than the Cross’s quoted 440 litres, and its standard hatchback stance does not provide the Cross’s extra ride height, roof rails or exterior protection. Regional differences mean a Dolphin seen in one country may not match the battery, output or equipment offered elsewhere. The 110 kW DC peak is documented, but charging time still depends on the charger, battery temperature and state of charge.
Both cars require the usual EV checks: access to dependable charging, insurance pricing, tyre replacement cost, software-update policy, service locations and the treatment of battery damage. These ownership factors can outweigh a small difference in WLTP range.
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Which driver should choose the AION UT Cross?
- Choose it if a higher seating position and crossover styling are important.
- Choose it if roof rails, lower-body cladding and a quoted 440-litre boot match your outdoor equipment.
- Choose it if the stated eight-year/160,000 km vehicle and eight-year/200,000 km battery warranty is confirmed in your local contract.
- Choose it if you can wait until early 2027 and are comfortable making a final decision after pricing and the production specification are released.
Before ordering, ask for the final WLTP certificate, usable battery capacity, DC charging time, wheel and tyre sizes, ground clearance, payload, towing limit, rear-seat dimensions and warranty booklet.
Which driver should choose the BYD Dolphin?
- Choose it if you need to buy on a complete, published regional specification now.
- Choose it if documented 427 km combined WLTP range and 110 kW DC charging are more important than a raised body.
- Choose it if you regularly fold the rear seats and can use the published 1,329-litre maximum load volume.
- Choose it if local dealer availability, servicing and delivery timing are more certain than an upcoming model’s.
Confirm which battery and trim your market receives. The European sheet’s 150 kW/310 Nm car is not automatically identical to every regional Dolphin.
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How should you make the final decision?
- Set your timing constraint. If the car is needed before early 2027, the Cross is not yet a fully specified purchase.
- Measure your real cargo. Compare the items you carry with the Dolphin’s 364-litre seats-up and 1,329-litre seats-folded figures, then check the Cross’s final cargo layout.
- Map your charging. Confirm home phase supply, public DC locations and whether the car’s cable and connector match your routine.
- Compare written warranties. Include battery-capacity terms, mileage limits, servicing and roadside assistance.
- Recheck regional specifications. Battery, power, WLTP range and equipment can change between countries.
- Price the whole purchase. Include insurance, tyres, servicing, charging installation and finance—not just the list price.
On the evidence available in November 2026, the Dolphin is the rational immediate purchase; the UT Cross is the more promising wait-and-see option for buyers who value crossover practicality and can tolerate unresolved launch details.
How we picked
The comparison uses current manufacturer and importer information supplied for each model: published WLTP figures, charging limits, battery and motor data, dimensions, boot volumes, warranty statements, announced equipment and launch timing. The ranking gives priority to specification certainty for an immediate purchase, then to the practical features each car explicitly claims. No independent road-test, real-world range test or site benchmark is implied.
Frequently Asked Questions
Will the AION UT Cross have four-wheel drive?
Four-wheel drive has not been confirmed in the supplied launch information. The regular UT reference specification is front-wheel drive, so buyers should wait for the Cross production data sheet before assuming it can provide all-wheel traction.
Can the BYD Dolphin tow a trailer or carry bikes?
A towing limit is not stated in the cited European specification. Check the local homologation document and approved accessory list before fitting a tow bar or carrying a trailer; roof-mounted bikes also require checking the permitted roof load.
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AION Auto UK says the heat pump is standard, which can reduce the energy used for cabin heating compared with resistive heating in suitable conditions. The actual range benefit varies with temperature, speed, battery state and climate settings, and no independent winter test figure is available here.
Can I use the BYD Dolphin as a mobile power source?
A January 2026 New Zealand specification lists vehicle-to-load capability and a portable charging cable. Because equipment and adapters can vary by market and trim, confirm that V2L is enabled and obtain the correct adapter before relying on it for camping appliances.
When will AION publish UK pricing for the UT Cross?
AION Auto UK has said pricing and the complete UK specification will be announced later, ahead of the model’s planned early-2027 launch. Until that announcement, dealer estimates should not be treated as final list prices.
