Loading comparison
firefly vs Hyundai Ioniq 3
Selected trimStandard205 mi · 41 kWh · Not available
At a glance
In this comparison, firefly firefly leads on city driving, while the Hyundai Ioniq 3 leads on value for money and family practicality.
Which should you choose?
Choose the firefly if...
- you drive in the city - it's compact with an excellent turning circle
Choose the Hyundai Ioniq 3 if...
- you want the most for your money - best overall spec per pound
- you have a family - it has the best combination of boot space, safety, and rear legroom
How we reached the recommendation
Verdict
Our take
The Hyundai Ioniq 3 edges ahead overall, but it's close - check which categories matter most to you.
ValueHyundai
firefly
0
Hyundai
7.2
Motorway Range
firefly
4.9
Hyundai
4.7
Too close to call
FamilyHyundai
firefly
7.6
Hyundai
8.2
Charging
firefly
6.6
Hyundai
7
Too close to call
Cost Per Mile
firefly
9.4
Hyundai
9.5
Too close to call
City Drivingfirefly
firefly
9.2
Hyundai
8.3
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | fireflyBase | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Price | Not available | £22,245 |
| Official range | 205 miles | 213 miles (better) |
| Boot space | 348 L | 441 L (better) |
| 10-80% rapid charge | 25 min (better) | 29 min |
| 0-62 mph | 8.1 sec (better) | 8.8 sec |
Size Comparison
View:
Align by:
firefly
Hyundai Ioniq 3
Length
firefly4,003mm-152mm
Hyundai Ioniq 34,155mm
Width
firefly1,781mm-19mm
Hyundai Ioniq 31,800mm
Height
firefly1,557mm
Hyundai Ioniq 31,505mm-52mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | fireflyBase | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Length | 4,003 mm | 4,155 mm |
| Width (mirrors folded) | 1,781 mm (better) | 1,800 mm |
| Width with mirrors out | Not available | 2,100 mm |
| Height | 1,557 mm | 1,505 mm |
| Turning circle | 9.4 m (better) | 10.4 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 619 mm spare (better) | 600 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | fireflyBase | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 3 | Not available |
| Boot space (seats up) | 348 L | 441 L (better) |
| Boot space (seats down) | 1253 L (better) | 1213 L |
| Frunk | 65 L | Not available |
| Towing capacity (braked) | Not available | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
firefly
- A 65 L frunk, one of 22 of 232 UK EVs in our catalogue with a front boot of 65 L or more.
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 9.4 m turning circle, tighter than 90% of hatchback EVs in our database.
Hyundai Ioniq 3
- 3rd-largest boot among hatchback EVs in our catalogue at 441 L.
- Eligible for the full £3,750 UK Electric Car Grant, one of 8 hatchback EVs we track that qualifies for the top band.
- Peak DC charging of 119 kW, faster than 90% of hatchback EVs in our catalogue.
Full specifications
| Specification |  firefly Base |  Hyundai Ioniq 3 Advance 42kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.00m | 4.16m+152mm |
| Width | 1.78m | 1.80m+19mm |
| Width (mirrors) | Not available | 2.10m |
| Height | 1.56m | 1.50m-52mm |
| Wheelbase | 2.62m | 2.68m+65mm |
| Capacity | ||
| Boot (seats up) | 348L | 441L (better) |
| Boot (seats down) | 1253L (better) | 1213L |
| Frunk | 65L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 9.4m (better) | 10.4m |
| Kerb Weight | 1,492kg (better) | 1,550kg |
| Towing Capacity | Not available | 750kg |
| Electric | ||
| Battery | 41kWh | 42.2kWh (better) |
| Range (WLTP) | 205 mi | 213 mi (better) |
| Max DC Charge | 100kW | 119kW (better) |
| Pricing | ||
| UK MSRP | Not available | £22,245 |
| Price after EV grant | Not available | £18,495 (-£3,750) |
| Details | ||
| Body Style | Hatchback | Hatchback |
| Available | 2026+ | 2026+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | fireflyBase | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| Official range (WLTP) | 205 miles | 213 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 171 miles | 178 miles (better) |
| 10-80% rapid charge time | 25 min (better) | 29 min |
| Max rapid charge rate | 100 kW | 119 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 41 kWh | 42.2 kWh (better) |
| Battery chemistry | NMC | Not available |
| Battery architecture | 400V | 400V |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | fireflyBase | Hyundai Ioniq 3Advance 42kWh |
|---|---|---|
| 0-62 mph | 8.1 sec (better) | 8.8 sec |
| Power | 105 kW | 108 kW (better) |
| Torque | 200 Nm | 250 Nm (better) |
| Drivetrain | RWD | FWD |
Watch the 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.
Prices & deals
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 - firefly firefly Base
Tested 2025
Adult Occupant96%
Child Occupant87%
Vulnerable Road Users82%
Safety Assist86%
Full result on euroncap.com (opens in new tab)
Buying options
Get a quote
firefly
Used on AutoTraderLease deals
Hyundai Ioniq 3
Used on AutoTraderLease deals
Frequently asked questions
What are the firefly firefly and Hyundai Ioniq 3 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 171 miles for the firefly firefly and 178 miles for the Hyundai Ioniq 3 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. Both rapid-charge to 80% in a similar time, around 25-29 minutes.
Which is easier to park and drive in town, the firefly firefly or the Hyundai Ioniq 3?
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 619 mm of total clearance for the firefly firefly and about 600 mm of total clearance for the Hyundai Ioniq 3. The firefly firefly also turns in a 1.0 m tighter circle, which helps with U-turns and multi-storey ramps.
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 firefly firefly comparisons
More Hyundai Ioniq 3 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 firefly firefly and Hyundai Ioniq 3 rank among the best family EVsWhere the firefly firefly and Hyundai Ioniq 3 rank among the best small electric carsWhere the firefly firefly and Hyundai Ioniq 3 rank among the best motorway EVsWhere the firefly firefly and Hyundai Ioniq 3 rank among the best city EVsWhere the firefly firefly and Hyundai Ioniq 3 rank among the cheapest EVs to runWhere the firefly firefly and Hyundai Ioniq 3 rank among EVs with the biggest boots
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .