2018 SEAT Mii 1.0 FR Line
Price: £6,750. Fair price: £118 (1%) over the AskCar estimate of £6,632, our expected asking price for this car from its model, age, mileage and specification, drawing on 123 priced SEAT Mii adverts on AskCar as of 6 November 2026.
AskCar lists 128 used SEAT Mii from 121 UK dealerships, as of 6 November 2026.
Overview
- Make: SEAT
- Model: Mii
- Trim: FR Line
- Version: 1.0 FR Line Manual FWD Euro 6 5dr (74 bhp)
- Year: 2018
- Mileage: 39,847 miles
- Fuel: Petrol
- Body: Hatchback, 5 doors, 4 seats
- Engine: 1.0 litres, 74 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Blue
- CO2: 102 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 SEAT Mii FR Line has covered 39,847 miles. The dealer is asking £6,750, which is £118 above the AskCar estimate of £6,632. To work out the AskCar estimate, we analyse UK dealer adverts for 123 SEAT Mii cars across different ages and specifications. Since we first spotted the advert 106 days ago, the asking price has dropped by £245. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Saunders Abbott, based in Sidcup. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £118 (1%) over the AskCar estimate of £6,632.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 123 priced SEAT Mii adverts across different ages and specifications, as of 6 November 2026.
A 2018 SEAT Mii with the 1.0 petrol engine is typically advertised at £6,500: the median of the 13 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2018 SEAT Mii has been on sale for at least 106 days.
Price history
AskCar first saw this advert on 23 July 2026 at £6,995. Its asking price is now £6,750, £245 less. The latest price cut was seen on 16 September 2026.
Price changes recorded:
- 24 July 2026: £6,995
- 16 September 2026: £6,750
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 18 November 2026.
It has had 5 MOTs. The latest, on 19 November 2025, passed.
Advisories at the latest test: nearside front obligatory mirror slightly damaged; front brake pad(s) wearing thin; front brake disc worn, pitted or scored, but not seriously weakened.
Mileage at that test: 36,386 miles, which matches the advertised 39,847 miles.
Advertised mileage is about 1,900 miles lower than the median mileage of a 2018 SEAT Mii on AskCar.
Similar cars
6 other 2018 SEAT Mii FR Line 1.0 petrol manual hatchbacks are for sale at UK dealers, from £5,495 to £8,795, as of 6 November 2026.
The 3 closest to this car in mileage:
- 2018 SEAT Mii FR Line, 1.0 petrol hatchback, blue. Mileage: 34,276 miles. Price: £6,795, the same price as this car. Dealer: The Yorkshire Car Centre in Wakefield. AskCar page: https://askcar.co.uk/car/seat-mii-2018-65850dd8bdb5
- 2018 SEAT Mii FR Line, 1.0 petrol hatchback, purple. Mileage: 48,377 miles. Price: £6,498, £252 less than this car. Dealer: Arnold Clark Aberdeen Kia in Aberdeen. AskCar page: https://askcar.co.uk/car/seat-mii-2018-7c616426aae7
- 2018 SEAT Mii FR Line, 1.0 petrol hatchback, red. Mileage: 28,293 miles. Price: £7,599, £849 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/seat-mii-2018-09896ad12ac2
- The nearest: 2018 SEAT Mii FR Line, 1.0 petrol hatchback, blue, under a mile from this car. Mileage: 7,000 miles. Price: £8,795, £2,045 more than this car. Dealer: Fenways Car Sales in Sidcup. AskCar page: https://askcar.co.uk/car/seat-mii-2018-d4b323afcc82
Browse all SEAT Mii cars for sale · 2018 SEAT Mii price guide
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Photos
23 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.