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SEAT Mii

Specs, engines and history

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By , Automotive Technology & EV Contributor

SEAT Mii: the Spanish City Car From the up! Family
Photo: M 93 / Wikimedia Commons, CC BY-SA 3.0 de
Built
2011–2021
Top power
61 kW (83 PS)

All specs

Which Mii to buy: verdict

Our verdict · Felix Hartmann

  • Cheapest to buy: a 1.0 with 44 kW (60 PS), the simplest version.
  • Best petrol: the 55 kW (75 PS) engine, with the same 95 Nm but more power at high revs.
  • Lowest fuel cost: the Ecofuel, if you have a natural-gas filling station nearby.
  • For the city: the 2019-2021 Mii Electric with 36.8 kWh and 260 km of WLTP range.

The SEAT Mii is a city car that SEAT sold from late 2011 to 2021, the Spanish twin of the Volkswagen up! and the Skoda Citigo. All three were built in Bratislava, Slovakia, on the Volkswagen Group's New Small Family platform. Until 2019 the Mii used 1.0-litre three-cylinder petrol and natural-gas engines with 44 to 55 kW; for its last two years it was sold only as the Mii Electric, with 61 kW (83 PS) and 260 km of WLTP range.

In short

  • A-segment city car, three- and five-door hatchback, about 3.54 m long, built in Bratislava (2011-2021).
  • Petrol engines: 1.0 with 44 kW (60 PS) or 55 kW (75 PS); the Ecofuel natural-gas version had 50 kW (68 PS).
  • Mii Electric (2019-2021): 36.8 kWh battery, 61 kW (83 PS), 212 Nm, 260 km WLTP.
  • Five Euro NCAP stars in 2011; three stars when the trio was retested in 2019.

Specs by version

Engines

VersionEnginePowerTorqueGearboxDriveProduction years
Electric · 1 version
Mii Electric Electric 61 kW 83 PS82 hp 212 Nm156 lb-ft Single-speed Front-wheel drive 2019–2021
Petrol · 2 versions
1.0 MPI 60 1.0 l · 3 cyl · Petrol 999 cc 44 kW 60 PS59 hp 95 Nm70 lb-ft 5-sp Manual Front-wheel drive 2011–2019
1.0 MPI 75 1.0 l · 3 cyl · Petrol 999 cc 55 kW 75 PS74 hp 95 Nm70 lb-ft 5-sp Manual Front-wheel drive 2011–2019
LPG / CNG · 1 version
1.0 Ecofuel 1.0 l · 3 cyl · LPG / CNG 999 cc 50 kW 68 PS67 hp 90 Nm66 lb-ft 5-sp Manual Front-wheel drive 2013–2018

Performance

Show all 1 versions
VersionTop speedRange
Mii Electric 130 km/h81 mph 260 km162 mi

Dimensions and weight

Show all 4 versions
VersionLengthWidthWheelbaseFuel tank
Electric · 1 version
Mii Electric 3,540 mm139.4 in 1,641 mm64.6 in 2,420 mm95.3 in -
Petrol · 2 versions
1.0 MPI 60 3,540 mm139.4 in 1,641 mm64.6 in 2,420 mm95.3 in 35 l9.2 gal US
1.0 MPI 75 3,540 mm139.4 in 1,641 mm64.6 in 2,420 mm95.3 in 35 l9.2 gal US
LPG / CNG · 1 version
1.0 Ecofuel 3,540 mm139.4 in 1,641 mm64.6 in 2,420 mm95.3 in -

Verified Manufacturer and type-approval data from our catalog · Sources and methodology

SEAT Mii at a glance

Specification SEAT Mii
Segment A-segment city car
Production 2011-2021, Volkswagen plant in Bratislava (Slovakia)
Platform Volkswagen Group NSF (New Small Family), front engine, front-wheel drive
Body styles three-door and five-door hatchback (five-door only at the end)
Twins Volkswagen up!, Skoda Citigo
Engines 1.0 MPI petrol, 1.0 Ecofuel (CNG), electric
Power range 44-61 kW (60-83 PS)
Predecessor SEAT Arosa (discontinued in 2004)

The Mii filled a gap of seven years: SEAT had not offered a car below the Ibiza since the Arosa ended in 2004. It went on sale in Spain in October 2011, the same month production started for Europe; ADAC's German listings begin in May 2012. More SEAT models are on our SEAT brand page.

SEAT Mii three-door, rear three-quarter view
2014 SEAT Mii S 1.0 from the rear. Photo: DieselFordMondeo / Wikimedia Commons, CC BY-SA 4.0

Generations and versions

The Mii had only one generation, catalogued by ADAC as type AA. Unlike the Skoda Citigo it received no visible facelift; the main change came with the 2020 model year, when SEAT dropped the petrol engines and kept only the electric version.

Generation Code Years Body styles Engines Power (kW / hp)
Mii (petrol and CNG) AA, NSF 2011-2019 3-door, 5-door 1.0 MPI, 1.0 Ecofuel 44-55 kW (60-75 PS)
Mii Electric AA, NSF 2019-2021 5-door electric motor, 36.8 kWh 61 kW (83 PS)

Special editions included the Mii by Mango, shown at the 2014 Geneva Motor Show and aimed at women buyers, and the Mii by Cosmopolitan of 2016, a collaboration with the magazine.

SEAT Mii by Mango special edition on a show stand
SEAT Mii by Mango at the 2014 Paris Motor Show. Photo: Thesupermat / Wikimedia Commons, CC BY-SA 3.0
SEAT Mii hatchback review - CarBuyer — Carbuyer (YouTube)

Engines and transmissions

Engine Power Torque Fuel Years (Germany)
1.0 MPI three-cylinder 44 kW (60 PS) 95 Nm petrol 2012-2018
1.0 MPI three-cylinder 55 kW (75 PS) 95 Nm petrol 2012-2018
1.0 Ecofuel three-cylinder 50 kW (68 PS) 90 Nm natural gas and petrol 2013-2018
Electric motor 61 kW (83 PS) 212 Nm electric 2019-2021

The years are the periods of the German versions listed by ADAC; ADAC states that petrol Mii models were built until 2019. The petrol engines are the same 999 cc three-cylinders as in the up!, with torque figures from the up!'s data. A five-speed manual gearbox was standard; in some markets the 44 and 55 kW versions could be ordered with a five-speed automated manual. Ecomotive versions added stop-start and brake energy recovery.

The Mii Electric

SEAT showed the Mii Electric in June 2019, opened pre-sales in 14 European countries in mid-September 2019 and started production in Bratislava in the fourth quarter of 2019; the first cars reached dealers in early 2020. It shares its drivetrain with the updated Volkswagen e-up! and the Skoda Citigo-e iV. Compared with the first e-up! of 2013, which had an 18.7 kWh battery and an NEDC range of 160 km, the Mii Electric arrived with almost twice the battery capacity and a range measured on the stricter WLTP cycle.

Parameter Mii Electric
Motor 61 kW (83 PS), 212 Nm
Battery 36.8 kWh lithium-ion
Range 260 km (162 miles), WLTP
0-50 km/h 3.9 s
Top speed 130 km/h (81 mph), limited
AC charging 7.2 kW, about 4 hours
DC charging up to 40 kW (CCS), 80% in about 1 hour

In Germany SEAT announced a price of EUR 16,300 in September 2019, after subtracting the government and manufacturer incentives. For other small electric cars see our electric cars section.

SEAT Mii Electric, front three-quarter view
SEAT Mii Electric with 61 kW and a 36.8 kWh battery. Photo: Alexander Migl / Wikimedia Commons, CC BY-SA 4.0

Dimensions and practicality

Parameter Metric Imperial
Length about 3,540 mm about 139.4 in
Width 1,641 mm 64.6 in
Height about 1,478 mm about 58.2 in
Wheelbase 2,420 mm 95.3 in
Fuel tank 35 l 9.2 US gal

The figures are those of the identical Volkswagen up! body; ADAC describes the Mii as just over 3.5 metres long. A boot volume for the Mii is not given in our sources.

Running costs and prices

Official combined consumption of the twin up! with the 44 kW engine was 4.4-4.5 l/100 km (about 52-53 mpg US); the identical Mii engine should be very close, but SEAT's own figures are not in our sources. Our fuel cost calculator converts such figures into a yearly cost. ADAC lists German list prices from EUR 8,990 for the three-door 1.0 with 44 kW in May 2012, from EUR 9,810 for the 55 kW version and from EUR 12,160 for the Ecofuel in 2013.

Trims and equipment

Equipment depended on market and year, from basic versions to the Mango and Cosmopolitan editions with their own colours and trim. Like the up! and Citigo, the Mii could be ordered with an automatic city emergency braking system, which works below 30 km/h; SEAT called it City Safety Assist. It was the first car in its class to offer such a system.

Dashboard and front seats of a SEAT Mii
Interior of the SEAT Mii. Photo: Bruno Kussler Marques / Wikimedia Commons, CC BY 2.0

Safety

Euro NCAP awarded the Mii five stars in 2011, with 89% (32 points) for adult occupants, 80% (39 points) for child occupants, 46% (17 points) for pedestrians and 86% (6 points) for safety assist. When Euro NCAP retested the three NSF cars in 2019 under stricter rules, the standard European Mii, up! and Citigo received three stars.

Sales and the end of production

The Mii sold best in 2013, with 28,608 registrations in Europe. That was far below the up!, which found 130,039 European buyers the same year, and also below the Skoda Citigo with 44,851. SEAT ended the petrol versions in 2019 and the whole Mii line-up in 2021.

Reliability and known issues

We have no sourced fault statistics or recall lists for the Mii, so we do not list typical problems here. Because the Mii is mechanically identical to the up! and Citigo, parts are widely available.

Rivals

Model Engines Power (hp) Boot (l) Price from (EUR)
SEAT Mii 1.0 petrol, 1.0 CNG, electric 60-83 not in sources 8,990 (Germany, 2012)
Volkswagen up! 1.0 petrol, 1.0 TSI, CNG, electric 60-116 not in sources not verified
Skoda Citigo 1.0 petrol, CNG, electric (Citigo-e iV) 60-83 not in sources not verified
Hyundai i10 petrol not verified not verified not verified
Kia Picanto petrol not verified not verified not verified

Use the comparison tool for exact figures of each rival.

SEAT Mii in our rankings

Shorter than 97% of ranked cars in the 1CARS catalog (No. 11 of 531).

FAQ

Is the SEAT Mii the same as the Volkswagen up!?

Technically, yes. The Mii, up! and Skoda Citigo share the NSF platform, engines and body structure and were all built in Bratislava; they differ in styling and equipment.

When did SEAT stop making the Mii?

Petrol versions ended in 2019; the Mii Electric was the last version, and the Mii line-up was discontinued in 2021.

What is the range of the SEAT Mii Electric?

SEAT quotes 260 km on the WLTP cycle from a 36.8 kWh battery.

How safe is the SEAT Mii?

It received five Euro NCAP stars in 2011. In the stricter 2019 retest the standard car achieved three stars.

Data sources

Data checked by an editor against the sources below.

How we collect and check data

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