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Hyundai INSTER vs SEAT Mii Electric
Selected trim01Change trim203 mi · 42 kWh · £23,755
Selected trimStandard · 2020-21161 mi · 36.8 kWh · £22,800
At a glance
In this comparison, Hyundai INSTER leads on value for money, motorway range and family practicality, while the SEAT Mii Electric leads on city driving.
Which should you choose?
Choose the Hyundai INSTER if...
- you want the most for your money - best overall spec per pound
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the most family-friendly option with good safety and space
- you need the fastest charging of these options
Choose the SEAT Mii Electric if...
- you drive in the city - it's compact with an excellent turning circle
How we reached the recommendation
Verdict
Our take
The Hyundai INSTER leads in the most categories, but each car here has its strengths.
ValueHyundai
Hyundai
6
SEAT
5.3
Motorway RangeHyundai
Hyundai
3.8
SEAT
3.1
FamilyHyundai
Hyundai
6
SEAT
4.2
ChargingHyundai
Hyundai
3.6
SEAT
0.7
Cost Per Mile
Hyundai
6.9
SEAT
7
Too close to call
City DrivingSEAT
Hyundai
8.8
SEAT
9.6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Hyundai INSTER
01
- 42 miles more WLTP range
- 33 kW faster rapid charging
- 30 min quicker 10-80% rapid charge
Key specifications
Compare the key specifications for your selected trims.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Price | £23,755 | £22,800 (better) |
| Official range | 203 miles (better) | 161 miles |
| Boot space | 280 L (better) | 251 L |
| 10-80% rapid charge | 30 min (better) | 60 min |
| 0-62 mph | 11.7 sec (better) | 12.3 sec |
Size Comparison
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Hyundai INSTER
SEAT Mii Electric
Length
Hyundai INSTER3,825mm
SEAT Mii Electric3,557mm-268mm
Width
Hyundai INSTER1,610mm-35mm
SEAT Mii Electric1,645mm
Height
Hyundai INSTER1,575mm
SEAT Mii Electric1,478mm-97mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Length | 3,825 mm | 3,557 mm |
| Width (mirrors folded) | 1,610 mm (better) | 1,645 mm |
| Width with mirrors out | 1,875 mm (better) | 1,910 mm |
| Height | 1,575 mm | 1,478 mm |
| Turning circle | 10.6 m | 9.8 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 790 mm spare (better) | 755 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Seats | 4 | 4 |
| ISOFIX child-seat points | 4 (better) | 2 |
| Boot space (seats up) | 280 L (better) | 251 L |
| Boot space (seats down) | 1059 L (better) | 923 L |
| Towing capacity (braked) | 0 kg | 0 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Hyundai INSTER
- Uses 143 Wh/km on the WLTP cycle, more efficient than 85% of hatchback EVs we track.
- 1,610 mm wide, below our 1,750 mm narrow-car threshold.
SEAT Mii Electric
- At 3,557 mm, shorter than 95% of hatchback EVs in our UK catalogue.
- 1,645 mm wide, below our 1,750 mm narrow-car threshold.
Full specifications
| Specification |  Hyundai INSTER 01 |  SEAT Mii Electric Base |
|---|---|---|
| Dimensions | ||
| Length | 3.83m | 3.56m-268mm |
| Width | 1.61m | 1.65m+35mm |
| Width (mirrors) | 1.88m | 1.91m+35mm |
| Height | 1.57m | 1.48m-97mm |
| Wheelbase | 2.58m | 2.42m-160mm |
| Ground Clearance | Not available | 138mm |
| Capacity | ||
| Boot (seats up) | 280L (better) | 251L |
| Boot (seats down) | 1059L (better) | 923L |
| Seats | 4 | 4 |
| Practicality | ||
| Turning Circle | 10.6m | 9.8m (better) |
| Kerb Weight | 1,349kg | 1,235kg (better) |
| Electric | ||
| Battery | 42kWh (better) | 36.8kWh |
| Range (WLTP) | 203 mi (better) | 161 mi |
| Max DC Charge | 73kW (better) | 40kW |
| Pricing | ||
| UK MSRP | £23,755 | £22,800 (better) |
| Details | ||
| Body Style | Hatchback | Hatchback |
| Available | 2025+ | 2020–2021 |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Official range (WLTP) | 203 miles (better) | 161 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 145 miles (better) | 134 miles |
| 10-80% rapid charge time | 30 min (better) | 60 min |
| Max rapid charge rate | 73 kW (better) | 40 kW |
| Home AC charging | 10.5 kW (better) | 7.2 kW |
| Energy consumption | 143 Wh/km | Not available |
| Usable battery capacity | 42 kWh (better) | 32.3 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | Not available | 400V |
| Heat pump | Standard (better) | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| 0-62 mph | 11.7 sec (better) | 12.3 sec |
| Power | 71 kW (better) | 61 kW |
| Torque | 147 Nm | 212 Nm (better) |
| Drivetrain | FWD | FWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
Hyundai INSTER
01
SEAT Mii Electric
Base
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Hyundai INSTER
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 | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Used market price from | £18,900 | £7,975 |
| Average used price | £18,990 | £8,999 |
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 - Hyundai INSTER 01
Tested 2025
Adult Occupant70%
Child Occupant81%
Vulnerable Road Users70%
Safety Assist67%
Full result on euroncap.com (opens in new tab)
Euro NCAP - SEAT Mii Electric Base
Tested 2019
Adult Occupant81%
Child Occupant83%
Vulnerable Road Users46%
Safety Assist55%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Hyundai INSTER01 | SEAT Mii ElectricBase |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,934 km (better) | 160,000 km |
What owners say
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 dealer & service support. Worth checking on a test drive whichever you choose.
Hyundai INSTER
01
Owners love
- Owners rate the rear space highly for a car under four metres long, especially the sliding rear bench on the 02.
- It is easy and relaxing to drive in town, and rides poor road surfaces better than its size suggests.
- Owners report efficient running, around 4.3 miles per kWh in everyday use.
Watch out for
- Acceleration is modest, and some owners find it slow at motorway speeds.
- The cabin is narrow: taller drivers report their knee touching the door.
- There is no wireless Apple CarPlay; owners use a plug-in adapter.
Owner tips
- Check whether a car has the Tech Pack if you want to power appliances from it.
- Look at the inner edge of the front tyres and ask when the alignment was last checked.
SEAT Mii Electric
Base
Owners love
- Excellent acceleration and nimble handling make it fun and engaging to drive in city environments
- Automatic gearbox offers convenience and accessibility for all drivers
- Regenerative braking (B mode) effectively recharges the battery during deceleration
Watch out for
- SEAT Connect app is frequently unreliable, with activation, mileage recognition, and connectivity issues affecting many owners
- AC charging defaults to 3.5-3.6kW instead of full 7.2kW capability, requiring complex app workarounds to unlock
- Home charger installation costs are prohibitively expensive (over £600), making it a significant barrier for many buyers
Owner tips
- If the car charges at only about 3.6 kW at home, owners report that lowering the maximum charging current in the app, syncing, then setting it back to maximum unlocks the full 7.2 kW; SEAT support can activate the eSIM and make you the primary user
- For home charging without an expensive wallbox installation, a standard 13A socket on a dedicated circuit is sufficient for overnight charging on short-commute usage patterns
Buying options
Get a quote
Hyundai INSTER
Used on AutoTraderLease deals
SEAT Mii Electric
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Hyundai INSTER
- £18,9902026Cars2View
- £18,9902026Cars2View
- £22,9902026Cars2View
SEAT Mii Electric
No active listings.
Frequently asked questions
Which is cheaper to own over 5 years, the Hyundai INSTER or the SEAT Mii Electric?
The SEAT Mii Electric is £955 cheaper to buy. Running costs are almost identical - about £152 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the SEAT Mii Electric comes out roughly £995 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Hyundai INSTER and SEAT Mii Electric like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 145 miles for the Hyundai INSTER and 134 miles for the SEAT Mii Electric - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. A rapid charge to 80% takes around 30 minutes in the Hyundai INSTER and 60 in the SEAT Mii Electric, so the Hyundai INSTER loses less time at each stop.
Which is easier to park and drive in town, the Hyundai INSTER or the SEAT Mii Electric?
The Hyundai INSTER is the easier car for tight UK car parks: it is 35 mm narrower than the SEAT Mii Electric. In a standard 2,400 mm bay that leaves about 790 mm of total clearance for the Hyundai INSTER and about 755 mm of total clearance for the SEAT Mii Electric. The SEAT Mii Electric also turns in a 0.8 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Hyundai INSTER or the SEAT Mii Electric?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Hyundai INSTER and 84% for the SEAT Mii Electric. 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. 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.
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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 Hyundai INSTER and SEAT Mii Electric rank among EVs under £30,000Where the Hyundai INSTER and SEAT Mii Electric rank among EVs under £40,000Where the Hyundai INSTER and SEAT Mii Electric rank among the best small electric carsWhere the Hyundai INSTER and SEAT Mii Electric rank among the best motorway EVsWhere the Hyundai INSTER and SEAT Mii Electric rank among the best city EVsWhere the Hyundai INSTER and SEAT Mii Electric rank among the cheapest EVs to run
If neither is quite right
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Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used Hyundai INSTER (2025-on): 42 vs 49 kWh, Recalls & What to Pay
A used Hyundai INSTER buyer’s guide: the 01, 02 and Cross compared, real-world range, the coolant valve recall, the Tech Pack, warranty left, what to pay and a printable checklist.
GuideUsed VW e-up!, SEAT Mii Electric and Skoda Citigo e iV buyer's guide
Buying a used VW e-up! or its twins, the SEAT Mii Electric and Skoda Citigo e iV: the 18.7 and 32.3 kWh versions, the 7 kW charging setting, range, owner reports and what to pay in 2026.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .