In this comparison, BYD ATTO 2 leads on running costs, while the Citroën ë-C4 leads on family practicality and charging speed.
Choose the BYD ATTO 2 if...
Choose the Citroën ë-C4 (2021-2024) if...
Our take
The Citroën ë-C4 edges ahead overall, but it's close - check which categories matter most to you.
Too close to call
Too close to call
Too close to call
See the specification differences behind the verdict, with supporting figures for each advantage.
Boost
Compare the key specifications for your selected trims.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Price | £30,850 (better) | £32,180 |
| Official range | 214 miles | 217 miles (better) |
| Boot space | 400 L (better) | 380 L |
| 10-80% rapid charge | Not available | 30 min |
| 0-62 mph | 7.9 sec (better) | 10 sec |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Length | 4,310 mm | 4,355 mm |
| Width (mirrors folded) | 1,830 mm | 1,800 mm (better) |
| Width with mirrors out | 2,060 mm | Not available |
| Height | 1,675 mm | 1,520 mm |
| Turning circle | 10.5 m (better) | 10.9 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 570 mm spare | 600 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 2 |
| Boot space (seats up) | 400 L (better) | 380 L |
| Boot space (seats down) | 1340 L (better) | 1250 L |
| Frunk | Not available | 0 L |
| Towing capacity (braked) | 750 kg (better) | 0 kg |
Percentile ranks against UK EVs of the same body style.
BYD ATTO 2
Citroën ë-C4
Not enough peers to make confident percentile claims.
| Specification | BYD ATTO 2 Boost | Citroën ë-C4 50kWh 136 (2021-24) |
|---|---|---|
| Dimensions | ||
| Length | 4.31m | 4.36m+45mm |
| Width | 1.83m | 1.80m-30mm |
| Width (mirrors) | 2.06m | Not available |
| Height | 1.68m | 1.52m-155mm |
| Wheelbase | 2.62m | 2.67m+50mm |
| Ground Clearance | 165mm | Not available |
| Capacity | ||
| Boot (seats up) | 400L (better) | 380L |
| Boot (seats down) | 1340L (better) | 1250L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 10.5m (better) | 10.9m |
| Kerb Weight | 1,590kg | 1,571kg (better) |
| Towing Capacity | 750kg (better) | Not available |
| Electric | ||
| Battery | 51.1kWh (better) | 50kWh |
| Range (WLTP) | 214 mi | 217 mi (better) |
| Max DC Charge | 82kW | 100kW (better) |
| Pricing | ||
| UK MSRP | £30,850 (better) | £32,180 |
| Details | ||
| Body Style | SUV | Hatchback |
| Available | 2025+ | 2021–2024 |
* BYD ATTO 2: Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Official range (WLTP) | 214 miles | 217 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 178 miles (better) | 156 miles |
| 10-80% rapid charge time | Not available | 30 min |
| Max rapid charge rate | 82 kW | 100 kW (better) |
| Home AC charging | 11 kW (better) | 7.4 kW |
| Energy consumption | Not available | 153 Wh/km |
| Usable battery capacity | 45.1 kWh | 46 kWh (better) |
| Battery chemistry | LFP | NMC |
| Battery architecture | Not available | 400V |
| Heat pump | Standard (better) | Not standard |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| 0-62 mph | 7.9 sec (better) | 10 sec |
| Power | 130 kW (better) | 100 kW |
| Torque | 290 Nm (better) | 260 Nm |
| Drivetrain | FWD | FWD |
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 ATTO 2
Boost

Citroën ë-C4
50kWh 136 (2021-24)
No critic reviews gathered yet for this car.
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.
Current pricing and recent used-market behaviour.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Used market price from | £19,991 | £13,649 |
| Average used price | £20,662 | £14,486 |
| Recent used-price trend | Down 5.9% over ~6 months | Up 9.8% over ~6 months |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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.
BYD ATTO 2 Boost
Euro NCAP crash-safety rating not published. The vehicle has been assessed under the Green NCAP sustainability programme only.
Tested 2021
Check the published battery warranty cover for each selected trim.
| Measure | BYD ATTO 2Boost | Citroën ë-C450kWh 136 (2021-24) |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 160,000 km |
Get a quote
BYD ATTO 2
Citroën ë-C4
Active inventory from independent UK dealers.
BYD ATTO 2
No active listings.
Citroën ë-C4
The Citroën ë-C4 costs £1,330 more than the BYD ATTO 2. On the headline specs that premium buys little measurable advantage - the two are closely matched on range, charging and space. The BYD ATTO 2 is not just cheaper - it also offers 30 kW more power and a 2.1s quicker 0-62mph time. On EVcarsguide's combined category scores, the Citroën ë-C4 comes out ahead overall.
The BYD ATTO 2 is £1,330 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 £1,370 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 178 miles for the BYD ATTO 2 and 156 miles for the Citroën ë-C4 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BYD ATTO 2 goes roughly 22 miles further between charging stops.
The Citroën ë-C4 is the easier car for tight UK car parks: it is 30 mm narrower than the BYD ATTO 2. In a standard 2,400 mm bay that leaves about 600 mm of total clearance for the Citroën ë-C4 and about 570 mm of total clearance for the BYD ATTO 2. The BYD ATTO 2 also turns in a 0.4 m tighter circle, which helps with U-turns and multi-storey ramps.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD ATTO 2 and 84% for the Citroën ë-C4. 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 Citroën ë-C4's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
More BYD ATTO 2 comparisons
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EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
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GuideA 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 Citroën ë-C4 or ë-C4 X: the 50 and 54 kWh versions, the recalls to check, realistic range, what owners report and what to pay in 2026.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .