In this comparison, Citroën ë-C4 leads on motorway range, family practicality and charging speed, while the Smart #1 leads on value for money.
Choose the Citroën ë-C4 (2021-2024) if...
Choose the Smart #1 if...
Our take
The Citroën ë-C4 wins almost every category - it's the clear choice unless price is the deciding factor.
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Price | £32,180 | £29,960 (better) |
| Official range | 217 miles (better) | 193 miles |
| Boot space | 380 L (better) | 313 L |
| 10-80% rapid charge | 30 min | 30 min |
| 0-62 mph | 10 sec | Not available |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Length | 4,355 mm | 4,270 mm |
| Width (mirrors folded) | 1,800 mm (better) | 1,822 mm |
| Width with mirrors out | Not available | 2,025 mm |
| Height | 1,520 mm | 1,636 mm |
| Turning circle | 10.9 m (better) | 11 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 600 mm spare (better) | 578 mm spare |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Seats | 5 | Not available |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 380 L (better) | 313 L |
| Boot space (seats down) | 1250 L (better) | 976 L |
| Frunk | 0 L | 15 L (better) |
| Towing capacity (braked) | 0 kg | 0 kg |
Percentile ranks against UK EVs of the same body style.
Citroën ë-C4
Not enough peers to make confident percentile claims.
Smart #1
| Specification | Citroën ë-C4 50kWh 136 (2021-24) | Smart #1 Pure |
|---|---|---|
| Dimensions | ||
| Length | 4.36m | 4.27m-85mm |
| Width | 1.80m | 1.82m+22mm |
| Width (mirrors) | Not available | 2.02m |
| Height | 1.52m | 1.64m+116mm |
| Wheelbase | 2.67m | 2.75m+80mm |
| Capacity | ||
| Boot (seats up) | 380L (better) | 313L |
| Boot (seats down) | 1250L (better) | 976L |
| Frunk | Not available | 15L (better) |
| Seats | 5 | Not available |
| Practicality | ||
| Turning Circle | 10.9m (better) | 11m |
| Kerb Weight | 1,571kg | Not available |
| Electric | ||
| Battery | 50kWh (better) | 49kWh |
| Range (WLTP) | 217 mi (better) | 193 mi |
| Max DC Charge | 100kW | 130kW (better) |
| Pricing | ||
| UK MSRP | £32,180 | £29,960 (better) |
| Details | ||
| Body Style | Hatchback | SUV |
| Available | 2021–2024 | 2023+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Official range (WLTP) | 217 miles (better) | 193 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 156 miles (better) | 133 miles |
| 10-80% rapid charge time | 30 min | 30 min |
| Max rapid charge rate | 100 kW | 130 kW (better) |
| Home AC charging | 7.4 kW | 7.4 kW |
| Energy consumption | 153 Wh/km (better) | 181 Wh/km |
| Usable battery capacity | 46 kWh | 49 kWh (better) |
| Battery chemistry | NMC | LFP |
| Battery architecture | 400V | Not available |
| Heat pump | Not standard | Not available |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| 0-62 mph | 10 sec | Not available |
| Power | 100 kW | 200 kW (better) |
| Torque | 260 Nm | Not available |
| Drivetrain | FWD | RWD |
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.

Citroën ë-C4
50kWh 136 (2021-24)
No critic reviews gathered yet for this car.

Smart #1
Pure
7.5/10
average across 4 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.
Current pricing and recent used-market behaviour.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Used market price from | £13,649 | £22,900 |
| Average used price | £14,486 | £23,771 |
| Active used listings trackedIndependent UK dealer listings seen in the last 90 days. | 4 listings | 10 listings (better) |
| Recent used-price trend | Up 9.8% over ~6 months | Up 4.3% 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.
Tested 2021
Tested 2022
Check the published battery warranty cover for each selected trim.
| Measure | Citroën ë-C450kWh 136 (2021-24) | Smart #1Pure |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,000 km | 201,168 km (better) |
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
Shared watch-outs for both cars
Owners of every car here flag infotainment & software. Worth checking on a test drive whichever you choose.

Citroën ë-C4
50kWh 136 (2021-24)

Smart #1
Pure
Get a quote
Citroën ë-C4
Smart #1
Active inventory from independent UK dealers.
Citroën ë-C4
Smart #1
The Citroën ë-C4 costs £2,220 more than the Smart #1. For that premium it adds 67 litres more boot space and lower energy use, 153 versus 181 Wh/km. The Smart #1 is not just cheaper - it also offers 30 kW faster peak rapid charging and 100 kW more power. On EVcarsguide's combined category scores, the Citroën ë-C4 comes out ahead overall.
The Smart #1 is £2,220 cheaper to buy. The Citroën ë-C4 is cheaper to charge, roughly £168 a year versus £200 for the Smart #1, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #1 comes out roughly £2,060 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 156 miles for the Citroën ë-C4 and 133 miles for the Smart #1 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Citroën ë-C4 goes roughly 23 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 30-30 minutes.
The two are within 22 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 600 mm of total clearance for the Citroën ë-C4 and about 578 mm of total clearance for the Smart #1.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Citroën ë-C4 and 90% for the Smart #1. That gives the Smart #1 a modest edge in retained real-world range. The Smart #1'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 Citroën ë-C4 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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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.
GuideA used Smart #1 buyer’s guide: the 66 kWh Pro+, Premium and BRABUS and the later 49 kWh Pure and Pro, the seat belt recall, the short car warranty but 8-year battery cover, real-world range, what owners report and a printable checklist.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .