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SeatMii (2012-2019)

Used only
City
Petrol/Diesel/Mild hybrid

£4,189Typical price

Test score

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Seat's smallest car is one of the VW Group's cross-brand city car triplets. Launched in 2012, the Seat Mii is almost identical to the Skoda Citigo and Volkswagen Up. It's certainly cheap to buy but is it worth the small saving over the more premium-badged VW Up? Find out in our full road test review.

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What's included?

What is it?
What's it great at?
What's it like to drive?
How reliable are Seat cars?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Should I buy it?

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KEY TEST RESULTS
Comfort and practicality
Brand reliability 0-4 years

Jan 2023Last checked by Which?
May 2012First reviewed by Which?
May 2012Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cars

19 Oct 2023

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

How we test ease of driving

To find out how easy a car is to drive, we assess cars across a number of areas from visibility and handling to the layout of the cabin and how smoothly the engine delivers its power.

Performance

Overall
In-gear acceleration
Brakes

How we test performance

We test braking distances and whether the effectivess of the brakes fade with repeat use. Performanc is based on in-gear acceleration.

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (small and sports cars)

How we test comfort and practicality

Comfort and practicality includes how easy it is, or not, to get in and out of the car and the maximum height of occupants. We also measure road, wind and engine noise and assess how well the car deals with bumps from large potholes to jittery surfaces like cobble stones.

Euro NCAP

How we test euro ncap

Any car that receives a rating of three stars or less from Euro NCAP is made a Don't Buy. If a car has been available for more than four years and has not been tested by Euro NCAP, it cannot be a Best Buy.

Which? safety

Brand reliability 0-4 years

Overall
Petrol reliability

How we test brand reliability 0-4 years

Our reliability ratings are based on the feedback from tens of thousands of UK motorists, as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 5-9 years

Overall
Diesel reliability

Brand reliability 10-15 years

Overall
Petrol reliability
Diesel reliability

General
Class	City
Luxury	No
Convertible	No
Availability	Used only
Used price	£4,189 - £8,812
Fuel type	Petrol/Diesel/Mild hybrid
Tested fuel efficiency	52.3 to 54.3mpg
Length	3,557mm
Width (excluding wing mirrors)	1,641 to 1,645mm
Width (including wing mirrors)	1,910 to 1,915mm
Height	1,478mm
Driver max height
Second row passenger max height
Boot space with seats up
Boot space with seats down
Number of seats	4
Folding rear seats	Yes
Isofix attachments	Yes
Turning circle	9.95 m
On sale date	28 May 2012
Lowest pence per mile cost	£12.06

Latest tested engine
Engine name	1.0 Style 3dr
Fuel type	Petrol
Capacity and power	1-litre (60hp)
Transmission	5-speed manual
Driven wheels	Front-wheel-drive (FWD)
Fuel tank capacity	35 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel economy: Combined (mpg)
Cost per mile	12.06p per mile
Cost of filling tank	£50
Monthly fuel cost
Annual fuel cost
NOx level	Extremely Low (trace)
CO level	Medium
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	118
Well-to-wheel (WTW) CO2 (g/km)	141
Official Euro emission level	Euro 5
Engine test date	11 February 2015
Test programme	2012-2016

Engine two
Engine name	1.0 75 Sport 5dr
Fuel	Petrol
Capacity and power	1-litre (75hp)
Transmission	5-speed manual
Driven wheels	Front-wheel-drive (FWD)
Fuel tank capacity	35 litres
Tested fuel economy: City / Out of town / Motorway
Tested fuel economy: combined mpg
Cost per mile	12.52p per mile
Cost of filling tank	£50
Monthly fuel cost
Annual fuel cost
NOx level	Extremely Low (trace)
CO level	Medium
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	122
Well-to-wheel (WTW) CO2 (g/km)	146
Official Euro emission level	Euro 5
Engine test date	17 October 2012
Car test programme	2012-2016

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SeatMii (2012-2019)

where to buy or sell