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BYD ATTO 2 vs MG S5 EV
Selected trimBoostChange trim214 mi · 51.1 kWh · £30,850
Selected trimSE Long RangeChange trim298 mi · 64 kWh · £31,495
At a glance
In this comparison, BYD ATTO 2 leads on running costs and city driving, while the MG S5 EV leads on value for money, family practicality and charging speed.
Which should you choose?
Choose the BYD ATTO 2 if...
- you want the lowest running costs - from just 2p per mile on off-peak electricity
- you need the best car for city driving and tight parking
Choose the MG S5 EV if...
- you want the most for your money - best overall spec per pound
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The MG S5 EV leads in the most categories, but each car here has its strengths.
ValueMG
BYD
4.6
MG
6.8
Motorway Range
BYD
3.7
MG
4.1
Too close to call
FamilyMG
BYD
2.3
MG
6.3
ChargingMG
BYD
1.9
MG
3.9
Cost Per MileBYD
BYD
6.1
MG
4.8
City DrivingBYD
BYD
7.3
MG
6.6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
MG S5 EV
SE Long Range
- 85 miles more WLTP range
- 53 litres more boot space
- 57 kW faster rapid charging
- 40 kW more power
- 1.6s quicker 0-62 mph
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Price | £30,850 (better) | £31,495 |
| Official range | 214 miles | 298 miles (better) |
| Boot space | 400 L | 453 L (better) |
| 10-80% rapid charge | Not available | 28 min |
| 0-62 mph | 7.9 sec | 6.3 sec (better) |
Size Comparison
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BYD ATTO 2
MG S5 EV
Length
BYD ATTO 24,310mm-166mm
MG S5 EV4,476mm
Width
BYD ATTO 21,830mm-19mm
MG S5 EV1,849mm
Height
BYD ATTO 21,675mm
MG S5 EV1,621mm-54mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Length | 4,310 mm | 4,476 mm |
| Width (mirrors folded) | 1,830 mm (better) | 1,849 mm |
| Width with mirrors out | 2,060 mm (better) | 2,094 mm |
| Height | 1,675 mm | 1,621 mm |
| Turning circle | 10.5 m | 10.5 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 570 mm spare (better) | 551 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Seats | 5 | Not available |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 400 L | 453 L (better) |
| Boot space (seats down) | 1340 L | 1441 L (better) |
| Towing capacity (braked) | 750 kg | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD ATTO 2
- At 4,310 mm, shorter than 85% of SUVs in our UK catalogue.
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 10.5 m turning circle, tighter than 80% of SUVs in our database.
MG S5 EV
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 10.53 m turning circle, tighter than 80% of SUVs in our database.
Full specifications
| Specification |  BYD ATTO 2 Boost |  MG S5 EV SE Long Range |
|---|---|---|
| Dimensions | ||
| Length | 4.31m | 4.48m+166mm |
| Width | 1.83m | 1.85m+19mm |
| Width (mirrors) | 2.06m | 2.09m+34mm |
| Height | 1.68m | 1.62m-54mm |
| Wheelbase | 2.62m | 2.73m+110mm |
| Ground Clearance | 165mm | Not available |
| Capacity | ||
| Boot (seats up) | 400L | 453L (better) |
| Boot (seats down) | 1340L | 1441L (better) |
| Seats | 5 | Not available |
| Practicality | ||
| Turning Circle | 10.5m (better) | 10.53m |
| Kerb Weight | 1,590kg (better) | 1,680kg |
| Towing Capacity | 750kg | 750kg |
| Electric | ||
| Battery | 51.1kWh | 64kWh (better) |
| Range (WLTP) | 214 mi | 298 mi (better) |
| Max DC Charge | 82kW | 139kW (better) |
| Pricing | ||
| UK MSRP | £30,850 (better) | £31,495 |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2025+ | 2025+ |
* BYD ATTO 2: Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
* MG S5 EV: 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 ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Official range (WLTP) | 214 miles | 298 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 178 miles | 208 miles (better) |
| 10-80% rapid charge time | Not available | 28 min |
| Max rapid charge rate | 82 kW | 139 kW (better) |
| Home AC charging | 11 kW (better) | 7 kW |
| Energy consumption | Not available | 155 Wh/km |
| Usable battery capacity | 45.1 kWh | 62.1 kWh (better) |
| Battery chemistry | LFP | NMC |
| Battery architecture | Not available | 400V |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| 0-62 mph | 7.9 sec | 6.3 sec (better) |
| Power | 130 kW | 170 kW (better) |
| Torque | 290 Nm | 350 Nm (better) |
| Drivetrain | FWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD ATTO 2
Boost
MG S5 EV
SE Long Range
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD ATTO 2
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 ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Used market price from | £19,991 | £20,214 |
| Average used price | £20,662 | £20,595 |
| Saving vs RRP | £10,188 below new | £10,900 below new |
| Recent used-price trend | Down 5.9% over ~6 months | Up 88% 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 ATTO 2 Boost
BYD ATTO 2 Boost
Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
Euro NCAP - MG S5 EV SE Long Range
Tested 2025
Adult Occupant90%
Child Occupant82%
Vulnerable Road Users82%
Safety Assist78%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD ATTO 2Boost | MG S5 EVSE Long Range |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 160,934 km |
Buying options
Get a quote
BYD ATTO 2
Used on AutoTraderLease deals
MG S5 EV
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD ATTO 2
No active listings.
MG S5 EV
- £23,4902026Cars2View
Frequently asked questions
Which is cheaper to own over 5 years, the BYD ATTO 2 or the MG S5 EV?
The BYD ATTO 2 is £645 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 2 comes out roughly £685 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 2 and MG S5 EV like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 178 miles for the BYD ATTO 2 and 208 miles for the MG S5 EV - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The MG S5 EV goes roughly 29 miles further between charging stops.
Which is easier to park and drive in town, the BYD ATTO 2 or the MG S5 EV?
The two are within 19 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 570 mm of total clearance for the BYD ATTO 2 and about 551 mm of total clearance for the MG S5 EV.
Which battery will hold up better as a used buy, the BYD ATTO 2 or the MG S5 EV?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 2 and 84% for the MG S5 EV. That gives the BYD ATTO 2 a modest edge in retained real-world range. The BYD ATTO 2's LFP-type pack tolerates daily 100% charging, while the MG S5 EV'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 ATTO 2 comparisons
More MG S5 EV 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 2 and MG S5 EV rank among EVs under £40,000Where the BYD ATTO 2 and MG S5 EV rank among the best electric SUVsWhere the BYD ATTO 2 and MG S5 EV rank among the best motorway EVsWhere the BYD ATTO 2 and MG S5 EV rank among the best city EVsWhere the BYD ATTO 2 and MG S5 EV rank among the cheapest EVs to runWhere the BYD ATTO 2 and MG S5 EV 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 2 (2025 on): Boost vs Comfort & What to Pay
A used BYD Atto 2 buyer’s guide: the 51 kWh Boost and 64.8 kWh Comfort, why a discounted new Comfort can undercut a nearly new Boost, BYD’s 8-year battery warranty, real-world range and a printable checklist.
GuideBuying a Used MG S5 EV (2025 on): Standard vs Long Range & What to Pay
A used MG S5 EV buyer’s guide: the 49 kWh and 64 kWh versions, SE vs Trophy, MG’s 7-year warranty and how to keep it, heavily discounted new cars vs nearly new, real-world range, what owners report and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .