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 Manual FWD Euro 6 (s/s) 5dr (118 bhp)
• Year: 2021
• Mileage: 23,724 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 23,724 miles, this 2021 Kia Stonic GT Line S has covered about 12,500 fewer miles than other 2021 Kia Stonic cars. Priced at £12,649, it is advertised £53 below the AskCar estimate of £12,702. To work out the AskCar estimate, we analyse UK dealer adverts for 1,703 Kia Stonic cars across different ages and specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £1,050. We checked its advertised mileage against the government's MOT record, and they match. The seller is Motorpoint Stockton-on-Tees, based in Stockton-on-Tees. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £53 (under 1%) under the AskCar estimate of £12,702.

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 1,703 priced Kia Stonic adverts across different ages and specifications, as of 4 November 2026.

A 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,600: the median of the 139 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Kia Stonic has been on sale for at least 24 days.

Price history

AskCar first saw this advert on 11 October 2026 at £13,699. Its asking price is now £12,649, £1,050 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 11 October 2026: £13,699
• 14 October 2026: £13,149
• 22 October 2026: £12,999
• 27 October 2026: £12,749
• 3 November 2026: £12,649

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 16 March 2027.

It has had 3 MOTs. The latest, on 5 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 20,883 miles, which matches the advertised 23,724 miles.

Advertised mileage is about 12,500 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

17 other 2021 Kia Stonic GT Line S 1.0 petrol manual SUVs are for sale at UK dealers, from £8,995 to £12,799, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 23,759 miles. Price: £12,300, £349 less than this car. Dealer: JW Autos in Rochester. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-fe63214ef571
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 25,560 miles. Price: £12,298, £351 less than this car. Dealer: Eddie Wright Car Supermarket in Scunthorpe. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-e57a8ef9339a
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 20,643 miles. Price: £12,799, £150 more than this car. Dealer: Motorpoint Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-a99a9d0936d0

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, white, 40 miles from this car. Mileage: 57,000 miles. Price: £10,590, £2,059 less than this car. Dealer: Vantage Toyota York in York. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-3afd8dec0768