2021 Kia Stonic 1.0 T-GDi MHEV GT Line S

Overview

• Make: Kia
• Model: Stonic
• Trim: GT Line S
• Version: 1.0 T-GDi Mhev GT Line S DCT FWD Euro 6 (s/s) 5dr (118 bhp)
• Year: 2021
• Mileage: 26,639 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Kia Stonic GT Line S has covered 26,639 miles, around 9,600 fewer miles than is typical for its age. Its asking price of £14,700 is £577 above the AskCar estimate of £14,123. The AskCar estimate draws on 1,673 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 11 days ago, the asking price has dropped by £50. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at RRG Group GWR Kia in Brentford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £577 (4%) over the AskCar estimate of £14,123.

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 1,673 priced Kia Stonic adverts across different ages and specifications, as of 2 November 2026.

A 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,600: the median of the 130 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Kia Stonic has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 22 October 2026 at £14,750. Its asking price is now £14,700, £50 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 22 October 2026: £14,750
• 23 October 2026: £14,700

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 14 January 2027.

It failed its MOT on 6 January 2026 (headlamp aim too high both) and passed later the same day.

Advisories at the latest test: items removed from driver's view prior to test.

Mileage at that test: 24,441 miles, which matches the advertised 26,639 miles.

Advertised mileage is about 9,600 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

12 other 2021 Kia Stonic GT Line S 1.0 petrol automatic SUVs are for sale at UK dealers, from £10,490 to £16,495, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 26,694 miles. Price: £13,550, £1,150 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-4efb1e00df2d
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 25,828 miles. Price: £13,952, £748 less than this car. Dealer: Budgen Motors in Telford. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-12772176006c
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 25,157 miles. Price: £13,999, £701 less than this car. Dealer: Magenta Cars in Ashington. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-89b5b3996f57

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, red, 15 miles from this car. Mileage: 81,000 miles. Price: £10,490, £4,210 less than this car. Dealer: Sk Car Sales . Com in Enfield. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-55657fa31032