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BYD Sealion 7 vs Toyota bZ4X (2022-2025)
Selected trimComfortChange trim300 mi · 82.5 kWh · £44,990
Selected trimFWD 71.4kWh · 2022-25Change trim321 mi · 71.4 kWh · £41,950
At a glance
In this comparison, BYD Sealion 7 leads on family practicality and charging speed, while the Toyota bZ4X leads on motorway range, running costs and city driving.
Best value
Too close to call
Range & charging
Too close to call
Practicality
Too close to call
Which should you choose?
Choose the BYD Sealion 7 if...
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
Choose the Toyota bZ4X (2022-2025) if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The Toyota bZ4X leads in the most categories, but each car here has its strengths.
Value
BYD
6
Toyota
5.9
Too close to call
Motorway RangeToyota
BYD
3.1
Toyota
5.9
FamilyBYD
BYD
8
Toyota
7.4
ChargingBYD
BYD
5.9
Toyota
3.5
Cost Per MileToyota
BYD
0.8
Toyota
7.6
City DrivingToyota
BYD
2.2
Toyota
4.2
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 Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Price | £44,990 | £41,950 (better) |
| Official range | 300 miles | 321 miles (better) |
| Boot space | 520 L (better) | 452 L |
| 10-80% rapid charge | 24 min (better) | 30 min |
| 0-62 mph | 6.7 sec (better) | 8.4 sec |
Size Comparison
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BYD Sealion 7
Toyota bZ4X
Length
BYD Sealion 74,830mm
Toyota bZ4X4,690mm-140mm
Width
BYD Sealion 71,925mm
Toyota bZ4X1,860mm-65mm
Height
BYD Sealion 71,620mm-30mm
Toyota bZ4X1,650mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Length | 4,830 mm | 4,690 mm |
| Width (mirrors folded) | 1,925 mm | 1,860 mm (better) |
| Width with mirrors out | 2,189 mm | Not available |
| Height | 1,620 mm | 1,650 mm |
| Turning circle | 11.7 m | 11.2 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 475 mm spare | 540 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 4 |
| Boot space (seats up) | 520 L (better) | 452 L |
| Boot space (seats down) | 1789 L | Not available |
| Frunk | 58 L | Not available |
| Towing capacity (braked) | 750 kg | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD Sealion 7
- One of 33 of 233 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- At 4,830 mm, longer than 80% of SUVs we track.
Toyota bZ4X
Not enough peers to make confident percentile claims.
Full specifications
| Specification |  BYD Sealion 7 Comfort |  Toyota bZ4X FWD 71.4kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.83m | 4.69m-140mm |
| Width | 1.93m | 1.86m-65mm |
| Width (mirrors) | 2.19m | Not available |
| Height | 1.62m | 1.65m+30mm |
| Wheelbase | 2.93m | 2.85m-80mm |
| Ground Clearance | 157mm | 177mm+20mm |
| Capacity | ||
| Boot (seats up) | 520L (better) | 452L |
| Boot (seats down) | 1789L | Not available |
| Frunk | 58L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.7m | 11.2m (better) |
| Kerb Weight | 2,225kg | 1,975kg (better) |
| Towing Capacity | 750kg | 750kg |
| Electric | ||
| Battery | 82.5kWh (better) | 71.4kWh |
| Range (WLTP) | 300 mi | 321 mi (better) |
| Max DC Charge | 150kW | 150kW |
| Pricing | ||
| UK MSRP | £44,990 | £41,950 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2022–2025 |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Official range (WLTP) | 300 miles | 321 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 204 miles | 267 miles (better) |
| 10-80% rapid charge time | 24 min (better) | 30 min |
| Max rapid charge rate | 150 kW | 150 kW |
| Home AC charging | 11 kW (better) | 6.6 kW |
| Energy consumption | 199 Wh/km | Not available |
| Usable battery capacity | 82.5 kWh (better) | 64 kWh |
| Battery chemistry | LFP | NMC |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| 0-62 mph | 6.7 sec (better) | 8.4 sec |
| Power | 230 kW (better) | 150 kW |
| Torque | 380 Nm (better) | 269 Nm |
| Drivetrain | RWD | FWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
BYD Sealion 7
Comfort
6.6/10
average across 6 reviews
- Parkers3.9/5
- Auto Express3.5/5
- Electrifying.com7/10
Toyota bZ4X
FWD 71.4kWh
No critic reviews gathered yet for this car.
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
New and used prices
Current pricing and recent used-market behaviour.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Used market price from | £30,211 | £23,540 |
| Average used price | £30,993 | £25,560 |
| Recent used-price trend | Up 11.3% over ~6 months | Down 24.5% over ~6 months |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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 Sealion 7 Comfort
Tested 2025
Adult Occupant87%
Child Occupant93%
Vulnerable Road Users76%
Safety Assist79%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Toyota bZ4X FWD 71.4kWh
Tested 2022
Adult Occupant88%
Child Occupant87%
Vulnerable Road Users79%
Safety Assist91%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD Sealion 7Comfort | Toyota bZ4XFWD 71.4kWh |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 160,934 km |
Buying options
Get a quote
BYD Sealion 7
Used on AutoTraderLease deals
Toyota bZ4X
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD Sealion 7
No active listings.
Toyota bZ4X
- £19,2992022Car360View
Frequently asked questions
Is the BYD Sealion 7 worth the extra £3,040 over the Toyota bZ4X?
The BYD Sealion 7 costs £3,040 more than the Toyota bZ4X. For that premium it adds 68 litres more boot space, 80 kW more power and a 1.7s quicker 0-62mph time. On EVcarsguide's combined category scores, the Toyota bZ4X comes out ahead overall.
Which is cheaper to own over 5 years, the BYD Sealion 7 or the Toyota bZ4X?
The Toyota bZ4X is £3,040 cheaper to buy. The Toyota bZ4X is cheaper to charge, roughly £152 a year versus £216 for the BYD Sealion 7, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Toyota bZ4X comes out roughly £3,360 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 Sealion 7 and Toyota bZ4X like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 204 miles for the BYD Sealion 7 and 267 miles for the Toyota bZ4X - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Toyota bZ4X goes roughly 63 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 24-30 minutes.
Which is easier to park and drive in town, the BYD Sealion 7 or the Toyota bZ4X?
The Toyota bZ4X is the easier car for tight UK car parks: it is 65 mm narrower than the BYD Sealion 7. In a standard 2,400 mm bay that leaves about 540 mm of total clearance for the Toyota bZ4X and about 475 mm of total clearance for the BYD Sealion 7. The Toyota bZ4X also turns in a 0.5 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BYD Sealion 7 or the Toyota bZ4X?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD Sealion 7 and 84% for the Toyota bZ4X. That gives the BYD Sealion 7 a modest edge in retained real-world range. The BYD Sealion 7's LFP-type pack tolerates daily 100% charging, while the Toyota bZ4X's NMC-type pack lasts longest kept to about 80% for everyday use. 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 Sealion 7 comparisons
More Toyota bZ4X 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 Sealion 7 and Toyota bZ4X rank among the best family EVsWhere the BYD Sealion 7 and Toyota bZ4X rank among the best electric SUVsWhere the BYD Sealion 7 and Toyota bZ4X rank among long-range EVsWhere the BYD Sealion 7 and Toyota bZ4X rank among the best motorway EVsWhere the BYD Sealion 7 and Toyota bZ4X rank among the best city EVsWhere the BYD Sealion 7 and Toyota bZ4X rank among the cheapest EVs to run
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used BYD Sealion 7 (2025 on): Comfort, Design or Excellence & What to Pay
A used BYD Sealion 7 buyer’s guide: Comfort RWD, Design AWD and Excellence AWD, the steep depreciation, BYD’s 8-year battery warranty, charging speeds, real-world range, what owners report and a printable checklist.
GuideBuying a Used Toyota bZ4X (2022 on): Which Version, Recalls, the 10-Year Warranty & What to Pay
A used Toyota bZ4X buyer’s guide: the 2022-2025 car vs the 2026 update, FWD vs AWD, 6.6 or 11 kW charging, recalls, Toyota’s service-activated warranty, real-world range, what owners report, what to pay and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .