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: 29,019 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: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Kia Stonic GT Line S has covered 29,019 miles, around 7,200 fewer miles than is typical for its age. The dealer is asking £13,704, which is £271 below the AskCar estimate of £13,975. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. This car was first seen in our listings data 5 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Carbase Bristol, based in Bristol. 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: £271 (1%) under the AskCar estimate of £13,975.

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

AskCar first saw this 2021 Kia Stonic advertised 5 days ago. About half of 2021 Kia Stonic cars are gone from sale within a month of being advertised: 90 of the 192 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 October 2026 at £13,704. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 4 November 2026.

It has had 2 MOTs. The latest, on 29 October 2025, passed.

Advisories at the latest test: offside rear tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 22,425 miles, which matches the advertised 29,019 miles.

Advertised mileage is about 7,200 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, grey. Mileage: 28,401 miles. Price: £13,000, £704 less than this car. Dealer: Paynes Of Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-18a500e85f08
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 30,306 miles. Price: £14,195, £491 more than this car. Dealer: Lloyd West Cumbria Kia in Workington. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-f6190673d59b
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 26,694 miles. Price: £13,550, £154 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-4efb1e00df2d

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey, 36 miles from this car. Mileage: 38,386 miles. Price: £13,985, £281 more than this car. Dealer: FJ Chalke - Nissan, Yeovil in Yeovil. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-5686a6559c9d