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BYD Sealion 7 vs Tesla Model Y
Selected trimComfortChange trim300 mi · 82.5 kWh · £44,990
Selected trimRWDChange trim314 mi · Not available · £41,990
At a glance
Overview
The BYD Sealion 7 lines up directly against the Tesla Model Y, the SUV it was designed to challenge on price and space. The Model Y holds the advantage on charging network, efficiency and resale, while the Sealion 7 brings BYD’s Blade battery, a well-equipped cabin and keen pricing. The decision rests on whether Tesla’s ecosystem outweighs the BYD’s value.
Best suited to:FamilyFirst EVLong commute
In this comparison, BYD Sealion 7 stays competitive across the board, while the Tesla Model Y leads on value for money, motorway range and charging speed.
Which should you choose?
Choose the Tesla Model Y 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 need the fastest charging of these options
- 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 Tesla Model Y wins almost every category - it's the clear choice unless price is the deciding factor.
ValueTesla
BYD
6
Tesla
6.5
Motorway RangeTesla
BYD
3.1
Tesla
5.8
Family
BYD
8
Tesla
7.8
Too close to call
ChargingTesla
BYD
5.9
Tesla
7
Cost Per MileTesla
BYD
0.8
Tesla
7.7
City DrivingTesla
BYD
2.2
Tesla
3
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Tesla Model Y
RWD
- £3,000 cheaper
- 334 litres more boot space
- 25 kW faster rapid charging
- 61 Wh/km more efficient
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| Price | £44,990 | £41,990 (better) |
| Official range | 300 miles | 314 miles (better) |
| Boot space | 520 L | 854 L (better) |
| 10-80% rapid charge | 24 min | Not available |
| 0-62 mph | 6.7 sec (better) | 6.9 sec |
Size Comparison
View:
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BYD Sealion 7
Tesla Model Y
Length
BYD Sealion 74,830mm
Tesla Model Y4,794mm-36mm
Width
BYD Sealion 71,925mm-56mm
Tesla Model Y1,981mm
Height
BYD Sealion 71,620mm-1mm
Tesla Model Y1,621mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| Length | 4,830 mm | 4,794 mm |
| Width (mirrors folded) | 1,925 mm (better) | 1,981 mm |
| Width with mirrors out | 2,189 mm | 2,129 mm (better) |
| Height | 1,620 mm | 1,621 mm |
| Turning circle | 11.7 m (better) | 12.1 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 475 mm spare (better) | 419 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 520 L | 854 L (better) |
| Boot space (seats down) | 1789 L | 2118 L (better) |
| Frunk | 58 L | 117 L (better) |
| Towing capacity (braked) | 750 kg (better) | 0 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD Sealion 7
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- At 4,830 mm, longer than 80% of SUVs we track.
Tesla Model Y
- 3rd-largest boot among SUVs in our catalogue at 854 L.
- A 117 L frunk, one of 6 of 232 UK EVs in our catalogue with a front boot of 117 L or more.
- Uses 138 Wh/km on the WLTP cycle, more efficient than 100% of SUVs we track.
Full specifications
| Specification |  BYD Sealion 7 Comfort |  Tesla Model Y RWD |
|---|---|---|
| Dimensions | ||
| Length | 4.83m | 4.79m-36mm |
| Width | 1.93m | 1.98m+56mm |
| Width (mirrors) | 2.19m | 2.13m-60mm |
| Height | 1.62m | 1.62m+1mm |
| Wheelbase | 2.93m | Not available |
| Ground Clearance | 157mm | 162mm+5mm |
| Capacity | ||
| Boot (seats up) | 520L | 854L (better) |
| Boot (seats down) | 1789L | 2118L (better) |
| Frunk | 58L | 117L (better) |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.7m (better) | 12.1m |
| Kerb Weight | 2,225kg | 1,906kg (better) |
| Towing Capacity | 750kg (better) | Not available |
| Electric | ||
| Battery | 82.5kWh | Not available |
| Range (WLTP) | 300 mi | 314 mi (better) |
| Max DC Charge | 150kW | 175kW (better) |
| Pricing | ||
| UK MSRP | £44,990 | £41,990 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2025+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| Official range (WLTP) | 300 miles | 314 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 204 miles | 251 miles (better) |
| 10-80% rapid charge time | 24 min | Not available |
| Max rapid charge rate | 150 kW | 175 kW (better) |
| Home AC charging | 11 kW | Not available |
| Energy consumption | 199 Wh/km | 138 Wh/km (better) |
| Usable battery capacity | 82.5 kWh | Not available |
| Battery chemistry | LFP | LFP |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| 0-62 mph | 6.7 sec (better) | 6.9 sec |
| Power | 230 kW | Not available |
| Torque | 380 Nm | Not available |
| Drivetrain | RWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD Sealion 7
Comfort
6.6/10
average across 6 reviews
- Parkers3.9/5
- Electrifying.com7/10
- Auto Express3.5/5
Tesla Model Y
RWD
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD Sealion 7
All 3 videos
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 | Tesla Model YRWD |
|---|---|---|
| Used market price from | £30,211 | £38,121 |
| Average used price | £30,993 | £40,783 |
| Saving vs RRP | £13,997 below new | £1,207 below new |
| Recent used-price trend | Up 11.3% over ~6 months | Down 9.2% 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 - Tesla Model Y RWD
Tested 2025
Adult Occupant91%
Child Occupant93%
Vulnerable Road Users86%
Safety Assist92%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD Sealion 7Comfort | Tesla Model YRWD |
|---|---|---|
| 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
Tesla Model Y
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD Sealion 7
No active listings.
Tesla Model Y
- £38,1212025Car360View
- £43,4442025Castle EVView
Frequently asked questions
Is the BYD Sealion 7 worth the extra £3,000 over the Tesla Model Y?
The BYD Sealion 7 costs £3,000 more than the Tesla Model Y. On the headline specs that premium buys little measurable advantage - the two are closely matched on range, charging and space. The Tesla Model Y is not just cheaper - it also offers 25 kW faster peak rapid charging, 334 litres more boot space and lower energy use, 138 versus 199 Wh/km. On EVcarsguide's combined category scores, the Tesla Model Y comes out ahead overall.
Which is cheaper to own over 5 years, the BYD Sealion 7 or the Tesla Model Y?
The Tesla Model Y is £3,000 cheaper to buy. The Tesla Model Y 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 Tesla Model Y comes out roughly £3,320 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 Tesla Model Y like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 204 miles for the BYD Sealion 7 and 251 miles for the Tesla Model Y - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Tesla Model Y goes roughly 47 miles further between charging stops.
Which is easier to park and drive in town, the BYD Sealion 7 or the Tesla Model Y?
The BYD Sealion 7 is the easier car for tight UK car parks: it is 56 mm narrower than the Tesla Model Y. In a standard 2,400 mm bay that leaves about 475 mm of total clearance for the BYD Sealion 7 and about 419 mm of total clearance for the Tesla Model Y. The BYD Sealion 7 also turns in a 0.4 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 Tesla Model Y?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD Sealion 7 and 90% for the Tesla Model Y. 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 Sealion 7 comparisons
More Tesla Model Y 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 Tesla Model Y rank among the best family EVsWhere the BYD Sealion 7 and Tesla Model Y rank among the best electric SUVsWhere the BYD Sealion 7 and Tesla Model Y rank among long-range EVsWhere the BYD Sealion 7 and Tesla Model Y rank among the best motorway EVsWhere the BYD Sealion 7 and Tesla Model Y rank among the best city EVsWhere the BYD Sealion 7 and Tesla Model Y 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
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GuideBest Value EVs in the UK: Composite Score Across Range, Battery, Charging & Space
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Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .