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: 17,715 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 17,715 miles on the clock, this 2021 Kia Stonic GT Line S has done roughly 17,900 fewer miles than a typical 2021 Kia Stonic. The AskCar estimate for this car is £12,979. It is priced at £12,300, which is £679 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,685 Kia Stonic adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 56 days ago. Its asking price has since fallen by £1,200. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at John Clark Kia in Peterhead. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £679 (5%) under the AskCar estimate of £12,979.

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 1,685 priced Kia Stonic adverts across different ages and specifications, as of 8 November 2026.

A 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,500: the median of the 131 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Kia Stonic has been on sale for at least 56 days.

Price history

AskCar first saw this advert on 13 September 2026 at £13,500. Its asking price is now £12,300, £1,200 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 13 September 2026: £13,500
• 9 October 2026: £13,200
• 20 October 2026: £12,500
• 27 October 2026: £12,300

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 5 March 2027.

It has had 3 MOTs. The latest, on 17 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 15,150 miles, which matches the advertised 17,715 miles.

Advertised mileage is about 17,900 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

19 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 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 20,643 miles. Price: £12,799, £499 more than this car. Dealer: Motorpoint Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-a99a9d0936d0
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 23,724 miles. Price: £12,649, £349 more than this car. Dealer: Motorpoint Stockton-on-Tees in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-9e554e1def29
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 23,759 miles. Price: £12,300, the same price as this car. Dealer: JW Autos in Rochester. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-fe63214ef571

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey, 85 miles from this car. Mileage: 60,600 miles. Price: £10,995, £1,305 less than this car. Dealer: Mks Lux in Dundee. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-6ca9b46ab87f