In this comparison, Nissan ARIYA leads on motorway range, family practicality and running costs, while the Smart #3 leads on city driving.
Choose the Nissan ARIYA if...
Choose the Smart #3 if...
Our take
The Nissan ARIYA leads in the most categories, but each car here has its strengths.
Too close to call
See the specification differences behind the verdict, with supporting figures for each advantage.
Engage+ 63kWh
Compare the key specifications for your selected trims.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| Price | £37,000 | £33,960 (better) |
| Official range | 250 miles (better) | 202 miles |
| Boot space | 466 L (better) | 370 L |
| 10-80% rapid charge | 30 min | 30 min |
| 0-62 mph | 7.5 sec | 5.8 sec (better) |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| Length | 4,595 mm | 4,400 mm |
| Width (mirrors folded) | 1,850 mm | 1,844 mm (better) |
| Width with mirrors out | 2,172 mm | Not available |
| Height | 1,660 mm | 1,556 mm |
| Turning circle | 11.5 m | Not available |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 550 mm spare | 556 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 466 L (better) | 370 L |
| Boot space (seats down) | 1350 L (better) | 1160 L |
| Frunk | Not available | 15 L |
| Towing capacity (braked) | 750 kg (better) | 0 kg |
| Specification | Nissan ARIYA Engage+ 63kWh | Smart #3 Pro |
|---|---|---|
| Dimensions | ||
| Length | 4.59m | 4.40m-195mm |
| Width | 1.85m | 1.84m-6mm |
| Width (mirrors) | 2.17m | Not available |
| Height | 1.66m | 1.56m-104mm |
| Wheelbase | 2.77m | 2.79m+10mm |
| Capacity | ||
| Boot (seats up) | 466L (better) | 370L |
| Boot (seats down) | 1350L (better) | 1160L |
| Frunk | Not available | 15L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.5m | Not available |
| Kerb Weight | 1,917kg | Not available |
| Towing Capacity | 750kg (better) | Not available |
| Electric | ||
| Battery | 63kWh | 66kWh (better) |
| Range (WLTP) | 250 mi (better) | 202 mi |
| Max DC Charge | 130kW | 150kW (better) |
| Pricing | ||
| UK MSRP | £37,000 | £33,960 (better) |
| Price after EV grant | £35,500 (-£1,500) | £33,960 (not eligible) |
| Details | ||
| Body Style | SUV | Coupe |
| Available | 2026+ | 2024+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| Official range (WLTP) | 250 miles (better) | 202 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 209 miles (better) | 189 miles |
| 10-80% rapid charge time | 30 min | 30 min |
| Max rapid charge rate | 130 kW | 150 kW (better) |
| Home AC charging | 7 kW | 7.4 kW (better) |
| Energy consumption | Not available | 172 Wh/km |
| Usable battery capacity | 63 kWh | 66 kWh (better) |
| Battery chemistry | NMC | NMC |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| 0-62 mph | 7.5 sec | 5.8 sec (better) |
| Power | 160 kW | 200 kW (better) |
| Torque | 300 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.

Nissan ARIYA
Engage+ 63kWh
No critic reviews gathered yet for this car.

Smart #3
Pro
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.
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 2022
Check the published battery warranty cover for each selected trim.
| Measure | Nissan ARIYAEngage+ 63kWh | Smart #3Pro |
|---|---|---|
| Battery warranty | Not available | 8 years |
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, real-world range. Worth checking on a test drive whichever you choose.

Nissan ARIYA
Engage+ 63kWh

Smart #3
Pro
Get a quote
Nissan ARIYA
Smart #3
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Nissan ARIYA
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Smart #3
The Nissan ARIYA costs £3,040 more than the Smart #3. For that premium it adds 48 miles more WLTP range and 96 litres more boot space. The Smart #3 is not just cheaper - it also offers 40 kW more power and a 1.7s quicker 0-62mph time. On EVcarsguide's combined category scores, the Nissan ARIYA comes out ahead overall.
The Smart #3 is £3,040 cheaper to buy. Running costs are almost identical - about £168 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Smart #3 comes out roughly £2,920 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 209 miles for the Nissan ARIYA and 189 miles for the Smart #3 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Nissan ARIYA goes roughly 20 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 30-30 minutes.
The two are within 6 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 556 mm of total clearance for the Smart #3 and about 550 mm of total clearance for the Nissan ARIYA.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Nissan ARIYA and 84% for the Smart #3. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.
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.
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Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .