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BYD ATTO 3 (2023-2026) vs Hyundai Ioniq 3
Selected trimComfort · 2023-26Change trim261 mi · 60.48 kWh · £36,990
At a glance
In this comparison, BYD ATTO 3 stays competitive across the board, while the Hyundai Ioniq 3 leads on value for money, motorway range and family practicality.
Which should you choose?
Choose the Hyundai Ioniq 3 if...
- you want the most for your money - best overall spec per pound
- you do long motorway journeys - it has the best estimated real-world range at speed
- you have a family - it has the best combination of boot space, safety, and rear legroom
- you need the fastest charging of these options
- you want the lowest running costs - from just 1.7p per mile on off-peak electricity
- you drive in the city - it's compact with an excellent turning circle
How we reached the recommendation
Verdict
Our take
The Hyundai Ioniq 3 wins almost every category - it's the clear choice unless price is the deciding factor.
ValueHyundai
BYD
5.6
Hyundai
7.2
Motorway RangeHyundai
BYD
4.1
Hyundai
4.7
FamilyHyundai
BYD
6.9
Hyundai
8.2
ChargingHyundai
BYD
2.1
Hyundai
7
Cost Per MileHyundai
BYD
6.2
Hyundai
9.5
City DrivingHyundai
BYD
6.6
Hyundai
8.3
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Price | £36,990 | £22,245 (better) |
| Official range | 261 miles (better) | 213 miles |
| Boot space | 440 L | 441 L (better) |
| 10-80% rapid charge | 35 min | 29 min (better) |
| 0-62 mph | 7.3 sec (better) | 8.8 sec |
Size Comparison
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BYD ATTO 3
Hyundai Ioniq 3
Length
BYD ATTO 34,455mm
Hyundai Ioniq 34,155mm-300mm
Width
BYD ATTO 31,875mm
Hyundai Ioniq 31,800mm-75mm
Height
BYD ATTO 31,615mm
Hyundai Ioniq 31,505mm-110mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Length | 4,455 mm | 4,155 mm |
| Width (mirrors folded) | 1,875 mm | 1,800 mm (better) |
| Width with mirrors out | 2,075 mm (better) | 2,100 mm |
| Height | 1,615 mm | 1,505 mm |
| Turning circle | 10.4 m | 10.4 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 525 mm spare | 600 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 3 | Not available |
| Boot space (seats up) | 440 L | 441 L (better) |
| Boot space (seats down) | 1338 L (better) | 1213 L |
| Towing capacity (braked) | 750 kg | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD ATTO 3
- Uses 147 Wh/km on the WLTP cycle, more efficient than 90% of SUVs we track.
- One of 34 of 233 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 10.4 m turning circle, tighter than 85% of SUVs in our database.
Hyundai Ioniq 3
- 3rd-largest boot among hatchback EVs in our catalogue at 441 L.
- Eligible for the full £3,750 UK Electric Car Grant, one of 8 hatchback EVs we track that qualifies for the top band.
- Peak DC charging of 119 kW, faster than 90% of hatchback EVs in our catalogue.
Full specifications
| Specification |  BYD ATTO 3 Comfort (2023-26) |  Hyundai Ioniq 3 Advance 42kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.46m | 4.16m-300mm |
| Width | 1.88m | 1.80m-75mm |
| Width (mirrors) | 2.08m | 2.10m+25mm |
| Height | 1.61m | 1.50m-110mm |
| Wheelbase | 2.72m | 2.68m-40mm |
| Ground Clearance | 180mm | Not available |
| Capacity | ||
| Boot (seats up) | 440L | 441L (better) |
| Boot (seats down) | 1338L (better) | 1213L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 10.4m | 10.4m |
| Kerb Weight | 1,750kg | 1,550kg (better) |
| Towing Capacity | 750kg | 750kg |
| Electric | ||
| Battery | 60.48kWh (better) | 42.2kWh |
| Range (WLTP) | 261 mi (better) | 213 mi |
| Max DC Charge | 88kW | 119kW (better) |
| Pricing | ||
| UK MSRP | £36,990 | £22,245 (better) |
| Price after EV grant | £36,990 (not eligible) | £18,495 (-£3,750) |
| Details | ||
| Body Style | SUV | Hatchback |
| Available | 2023–2026 | 2026+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Official range (WLTP) | 261 miles (better) | 213 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 213 miles (better) | 178 miles |
| 10-80% rapid charge time | 35 min | 29 min (better) |
| Max rapid charge rate | 88 kW | 119 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 147 Wh/km | Not available |
| Usable battery capacity | 60.5 kWh (better) | 42.2 kWh |
| Battery chemistry | LFP | Not available |
| Battery architecture | 400V | 400V |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| 0-62 mph | 7.3 sec (better) | 8.8 sec |
| Power | 150 kW (better) | 108 kW |
| Torque | 310 Nm (better) | 250 Nm |
| Drivetrain | FWD | FWD |
Prices & deals
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - BYD ATTO 3 Comfort (2023-26)
Tested 2022
Adult Occupant91%
Child Occupant89%
Vulnerable Road Users69%
Safety Assist74%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD ATTO 3Comfort (2023-26) | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 250,000 km | Not available |
Buying options
Get a quote
BYD ATTO 3
Used on AutoTraderLease deals
Hyundai Ioniq 3
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD ATTO 3
- £20,1992024Car360View
- £19,9812024Car360View
- £19,3642024Car360View
Hyundai Ioniq 3
No active listings.
Frequently asked questions
Is the BYD ATTO 3 worth the extra £14,745 over the Hyundai Ioniq 3?
The BYD ATTO 3 costs £14,745 more than the Hyundai Ioniq 3. For that premium it adds 48 miles more WLTP range, 42 kW more power and a 1.5s quicker 0-62mph time. The Hyundai Ioniq 3 is not just cheaper - it also offers 31 kW faster peak rapid charging. On EVcarsguide's combined category scores, the Hyundai Ioniq 3 comes out ahead overall.
Which is cheaper to own over 5 years, the BYD ATTO 3 or the Hyundai Ioniq 3?
The Hyundai Ioniq 3 is £14,745 cheaper to buy. Running costs are almost identical - about £136 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Hyundai Ioniq 3 comes out roughly £14,865 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BYD ATTO 3 and Hyundai Ioniq 3 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 213 miles for the BYD ATTO 3 and 178 miles for the Hyundai Ioniq 3 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 3 goes roughly 35 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 29-35 minutes.
Which is easier to park and drive in town, the BYD ATTO 3 or the Hyundai Ioniq 3?
The Hyundai Ioniq 3 is the easier car for tight UK car parks: it is 75 mm narrower than the BYD ATTO 3. In a standard 2,400 mm bay that leaves about 600 mm of total clearance for the Hyundai Ioniq 3 and about 525 mm of total clearance for the BYD ATTO 3.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
Compare similarly sized and priced electric cars before finalising your shortlist.
More BYD ATTO 3 comparisons
More Hyundai Ioniq 3 comparisons
See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the BYD ATTO 3 and Hyundai Ioniq 3 rank among the best family EVsWhere the BYD ATTO 3 and Hyundai Ioniq 3 rank among EVs under £40,000Where the BYD ATTO 3 and Hyundai Ioniq 3 rank among the best motorway EVsWhere the BYD ATTO 3 and Hyundai Ioniq 3 rank among the best city EVsWhere the BYD ATTO 3 and Hyundai Ioniq 3 rank among the cheapest EVs to runWhere the BYD ATTO 3 and Hyundai Ioniq 3 rank among EVs with the biggest boots
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .