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BYD Sealion 7 vs MG IM6
Selected trimComfortChange trim300 mi · 82.5 kWh · £44,990
Selected trim100 Long RangeChange trim388 mi · 100 kWh · £47,995
At a glance
In this comparison, BYD Sealion 7 leads on family practicality, while the MG IM6 leads on motorway range, charging speed and city driving.
Which should you choose?
Choose the BYD Sealion 7 if...
- you need the most family-friendly option with good safety and space
Choose the MG IM6 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 drive in the city - it's compact with an excellent turning circle
How we reached the recommendation
Verdict
Our take
The MG IM6 leads in the most categories, but each car here has its strengths.
Value
BYD
6
MG
5.8
Too close to call
Motorway RangeMG
BYD
3.1
MG
6
FamilyBYD
BYD
8
MG
5.1
ChargingMG
BYD
5.9
MG
9.1
City DrivingMG
BYD
2.2
MG
3.7
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
MG IM6
100 Long Range
- 88 miles more WLTP range
- 145 litres more boot space
- 246 kW faster rapid charging
- 70 kW more power
- 1.3s quicker 0-62 mph
- 17 Wh/km more efficient
- 1.5 m tighter turning circle
- 750 kg more towing capacity
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| Price | £44,990 (better) | £47,995 |
| Official range | 300 miles | 388 miles (better) |
| Boot space | 520 L | 665 L (better) |
| 10-80% rapid charge | 24 min | 17 min (better) |
| 0-62 mph | 6.7 sec | 5.4 sec (better) |
Size Comparison
View:
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BYD Sealion 7
MG IM6
Length
BYD Sealion 74,830mm-74mm
MG IM64,904mm
Width
BYD Sealion 71,925mm-63mm
MG IM61,988mm
Height
BYD Sealion 71,620mm-49mm
MG IM61,669mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| Length | 4,830 mm | 4,904 mm |
| Width (mirrors folded) | 1,925 mm (better) | 1,988 mm |
| Width with mirrors out | 2,189 mm (better) | 2,190 mm |
| Height | 1,620 mm | 1,669 mm |
| Turning circle | 11.7 m | 10.2 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 475 mm spare (better) | 412 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 520 L | 665 L (better) |
| Boot space (seats down) | 1789 L (better) | 1640 L |
| Frunk | 58 L (better) | 32 L |
| Towing capacity (braked) | 750 kg | 1,500 kg (better) |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD Sealion 7
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- At 4,830 mm, longer than 80% of SUVs we track.
MG IM6
- 388 mile WLTP range, longer than 90% of SUVs we track.
- At 4,904 mm, longer than 85% of SUVs we track.
- Peak DC charging of 396 kW, faster than 100% of SUVs in our catalogue.
Full specifications
| Specification |  BYD Sealion 7 Comfort |  MG IM6 100 Long Range |
|---|---|---|
| Dimensions | ||
| Length | 4.83m | 4.90m+74mm |
| Width | 1.93m | 1.99m+63mm |
| Width (mirrors) | 2.19m | 2.19m+1mm |
| Height | 1.62m | 1.67m+49mm |
| Wheelbase | 2.93m | 2.95m+20mm |
| Ground Clearance | 157mm | Not available |
| Capacity | ||
| Boot (seats up) | 520L | 665L (better) |
| Boot (seats down) | 1789L (better) | 1640L |
| Frunk | 58L (better) | 32L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.7m | 10.18m (better) |
| Kerb Weight | 2,225kg (better) | 2,320kg |
| Towing Capacity | 750kg | 1,500kg (better) |
| Electric | ||
| Battery | 82.5kWh | 100kWh (better) |
| Range (WLTP) | 300 mi | 388 mi (better) |
| Max DC Charge | 150kW | 396kW (better) |
| Pricing | ||
| UK MSRP | £44,990 (better) | £47,995 |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2025+ |
* MG IM6: Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| Official range (WLTP) | 300 miles | 388 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 204 miles | 275 miles (better) |
| 10-80% rapid charge time | 24 min | 17 min (better) |
| Max rapid charge rate | 150 kW | 396 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 199 Wh/km | 182 Wh/km (better) |
| Usable battery capacity | 82.5 kWh | 96.5 kWh (better) |
| Battery chemistry | LFP | NMC |
| Battery architecture | Not available | 800V |
| Heat pump | Standard | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| 0-62 mph | 6.7 sec | 5.4 sec (better) |
| Power | 230 kW | 300 kW (better) |
| Torque | 380 Nm | 500 Nm (better) |
| 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
- Auto Express3.5/5
- Electrifying.com7/10
MG IM6
100 Long Range
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 | MG IM6100 Long Range |
|---|---|---|
| Used market price from | £30,211 | £34,990 |
| Average used price | £30,993 | £35,290 |
| Saving vs RRP | £13,997 below new | £12,705 below new |
| Recent used-price trend | Down 10.1% over ~6 months | Down 1.5% 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 - MG IM6 100 Long Range
MG IM6 100 Long Range
Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD Sealion 7Comfort | MG IM6100 Long Range |
|---|---|---|
| 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
MG IM6
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD Sealion 7
No active listings.
MG IM6
- £35,4582026Car360View
- £34,9902026Cars2View
- £35,2902025Cars2View
Frequently asked questions
Is the MG IM6 worth the extra £3,005 over the BYD Sealion 7?
The MG IM6 costs £3,005 more than the BYD Sealion 7. For that premium it adds 88 miles more WLTP range, 246 kW faster peak rapid charging and 145 litres more boot space. On EVcarsguide's combined category scores, the MG IM6 comes out ahead overall.
Which is cheaper to own over 5 years, the BYD Sealion 7 or the MG IM6?
The BYD Sealion 7 is £3,005 cheaper to buy. Running costs are almost identical - about £200 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BYD Sealion 7 comes out roughly £2,925 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 MG IM6 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 204 miles for the BYD Sealion 7 and 275 miles for the MG IM6 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The MG IM6 goes roughly 71 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 17-24 minutes.
Which is easier to park and drive in town, the BYD Sealion 7 or the MG IM6?
The BYD Sealion 7 is the easier car for tight UK car parks: it is 63 mm narrower than the MG IM6. In a standard 2,400 mm bay that leaves about 475 mm of total clearance for the BYD Sealion 7 and about 412 mm of total clearance for the MG IM6. The MG IM6 also turns in a 1.5 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 MG IM6?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD Sealion 7 and 84% for the MG IM6. 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 MG IM6'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 MG IM6 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 MG IM6 rank among the best family EVsWhere the BYD Sealion 7 and MG IM6 rank among the best electric SUVsWhere the BYD Sealion 7 and MG IM6 rank among long-range EVsWhere the BYD Sealion 7 and MG IM6 rank among the best motorway EVsWhere the BYD Sealion 7 and MG IM6 rank among the best city EVsWhere the BYD Sealion 7 and MG IM6 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.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .