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BYD ATTO 3 vs BYD Seal
Selected trimEVO Design RWDChange trim317 mi · 74.8 kWh · £38,990
Selected trimDesignChange trim354 mi · 82.5 kWh · £45,730
At a glance
In this comparison, BYD ATTO 3 leads on motorway range, charging speed and running costs, while the BYD Seal leads on family practicality.
Which should you choose?
Choose the BYD ATTO 3 if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the fastest charging of these options
- you want the lowest running costs - from just 2p per mile on off-peak electricity
- you drive in the city - it's compact with an excellent turning circle
Choose the BYD Seal if...
- you need the most family-friendly option with good safety and space
How we reached the recommendation
Verdict
Our take
The BYD ATTO 3 leads in the most categories, but each car here has its strengths.
Value
ATTO 3
5.9
Seal
6.3
Too close to call
Motorway RangeATTO 3
ATTO 3
5.1
Seal
3.1
FamilySeal
ATTO 3
5
Seal
6.7
ChargingATTO 3
ATTO 3
5.1
Seal
2.4
Cost Per MileATTO 3
ATTO 3
6.2
Seal
3.4
City DrivingATTO 3
ATTO 3
6.5
Seal
3.6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
BYD ATTO 3
EVO Design RWD
- £6,740 cheaper
- 70 kW faster rapid charging
- 19 Wh/km more efficient
- 0.8 m tighter turning circle
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| Price | £38,990 (better) | £45,730 |
| Official range | 317 miles | 354 miles (better) |
| Boot space | 440 L (better) | 400 L |
| 10-80% rapid charge | 35 min (better) | 37 min |
| 0-62 mph | 5.5 sec (better) | 5.9 sec |
Size Comparison
View:
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BYD ATTO 3
BYD Seal
Length
BYD ATTO 34,455mm-345mm
BYD Seal4,800mm
Width
BYD ATTO 31,875mm
BYD Seal1,875mm
Height
BYD ATTO 31,615mm
BYD Seal1,460mm-155mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| Length | 4,455 mm | 4,800 mm |
| Width (mirrors folded) | 1,875 mm | 1,875 mm |
| Width with mirrors out | 2,075 mm (better) | 2,150 mm |
| Height | 1,615 mm | 1,460 mm |
| Turning circle | 10.4 m (better) | 11.2 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 525 mm spare | 525 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 3 | 3 |
| Boot space (seats up) | 440 L (better) | 400 L |
| Boot space (seats down) | 1338 L | Not available |
| Frunk | Not available | 53 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 95% of SUVs we track.
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 10.4 m turning circle, tighter than 85% of SUVs in our database.
BYD Seal
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 11.2 m turning circle, tighter than 85% of saloon EVs in our database.
Full specifications
| Specification |  BYD ATTO 3 EVO Design RWD |  BYD Seal Design |
|---|---|---|
| Dimensions | ||
| Length | 4.46m | 4.80m+345mm |
| Width | 1.88m | 1.88m |
| Width (mirrors) | 2.08m | 2.15m+75mm |
| Height | 1.61m | 1.46m-155mm |
| Wheelbase | 2.72m | 2.92m+200mm |
| Ground Clearance | 180mm | Not available |
| Capacity | ||
| Boot (seats up) | 440L (better) | 400L |
| Boot (seats down) | 1338L | Not available |
| Frunk | Not available | 53L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 10.4m (better) | 11.2m |
| Kerb Weight | 1,750kg (better) | 2,055kg |
| Towing Capacity | 750kg | 750kg |
| Electric | ||
| Battery | 74.8kWh | 82.5kWh (better) |
| Range (WLTP) | 317 mi | 354 mi (better) |
| Max DC Charge | 220kW (better) | 150kW |
| Pricing | ||
| UK MSRP | £38,990 (better) | £45,730 |
| Details | ||
| Body Style | SUV | Saloon |
| Available | 2026+ | 2023+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| Official range (WLTP) | 317 miles | 354 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 263 miles (better) | 244 miles |
| 10-80% rapid charge time | 35 min (better) | 37 min |
| Max rapid charge rate | 220 kW (better) | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 147 Wh/km (better) | 166 Wh/km |
| Usable battery capacity | 74.8 kWh | 82.5 kWh (better) |
| Battery chemistry | LFP | LFP |
| Battery architecture | 400V | 400V |
| Heat pump | Standard | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| 0-62 mph | 5.5 sec (better) | 5.9 sec |
| Power | 230 kW | 230 kW |
| Torque | 310 Nm | 360 Nm (better) |
| Drivetrain | RWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD ATTO 3
EVO Design RWD
BYD Seal
Design
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD ATTO 3
All 3 videos
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
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 Seal Design
Tested 2023
Adult Occupant89%
Child Occupant87%
Vulnerable Road Users82%
Safety Assist76%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD ATTO 3EVO Design RWD | BYD SealDesign |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km | 250,000 km |
Buying options
Get a quote
BYD ATTO 3
Used on AutoTraderLease deals
BYD Seal
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD ATTO 3
No active listings.
BYD Seal
- £28,5822025Car360View
- £30,6992025Car360View
- £29,6822025Car360View
Frequently asked questions
Is the BYD Seal worth the extra £6,740 over the BYD ATTO 3?
The BYD Seal costs £6,740 more than the BYD ATTO 3. For that premium it adds 37 miles more WLTP range. The BYD ATTO 3 is not just cheaper - it also offers 70 kW faster peak rapid charging and lower energy use, 147 versus 166 Wh/km. On EVcarsguide's combined category scores, the BYD ATTO 3 comes out ahead overall.
Which is cheaper to own over 5 years, the BYD ATTO 3 or the BYD Seal?
The BYD ATTO 3 is £6,740 cheaper to buy. Running costs are almost identical - about £160 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BYD ATTO 3 comes out roughly £6,860 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 BYD Seal like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 263 miles for the BYD ATTO 3 and 244 miles for the BYD Seal - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 3 goes roughly 19 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 35-37 minutes.
Which is easier to park and drive in town, the BYD ATTO 3 or the BYD Seal?
The two are within 0 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 525 mm of total clearance for the BYD ATTO 3 and about 525 mm of total clearance for the BYD Seal. The BYD ATTO 3 also turns in a 0.8 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BYD ATTO 3 or the BYD Seal?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 3 and 90% for the BYD Seal. That is close enough that capacity loss should not decide between them. Both use LFP-type cells, which are happy charged to 100% every day. Both batteries carry a 8-year manufacturer warranty.
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 BYD Seal 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 BYD Seal rank among the best family EVsWhere the BYD ATTO 3 and BYD Seal rank among long-range EVsWhere the BYD ATTO 3 and BYD Seal rank among the best motorway EVsWhere the BYD ATTO 3 and BYD Seal rank among the best city EVsWhere the BYD ATTO 3 and BYD Seal rank among the cheapest EVs to runWhere the BYD ATTO 3 and BYD Seal rank among EVs with the biggest boots
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used BYD Atto 3 (2023 on): Warranty, Charging & What to Pay
A used BYD Atto 3 buyer’s guide: the original 60 kWh car vs the 2026 Atto 3 EVO, BYD’s long warranty, slow rapid charging, insurance, what owners report, what to pay and a printable checklist.
GuideBuying a Used BYD Seal (2023 on): Design vs Excellence, the Long Warranty & What to Pay
A used BYD Seal buyer’s guide: Design RWD vs Excellence AWD, the 2026 update, BYD’s 6-year warranty and 8-year / 250,000 km battery cover, real-world range, what owners report, what to pay (nearly-new ones are about a third off) and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .