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: 29,946 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Kia Stonic GT Line S is advertised with 29,946 miles, approximately 6,300 below the typical mileage for its age. Priced at £12,495, it is advertised £121 above the AskCar estimate of £12,374. The AskCar estimate uses UK dealer asking prices, including 1,725 Kia Stonic adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. The government's MOT record matches its advertised mileage. It is advertised by Grainger Motor Group in ELY. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £121 (under 1%) over the AskCar estimate of £12,374.

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 1,725 priced Kia Stonic adverts across different ages and specifications, as of 6 November 2026.

A 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,600: the median of the 137 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 Kia Stonic advertised today. About half of 2021 Kia Stonic cars are gone from sale within a month of being advertised: 90 of the 200 first advertised between 11 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £12,495. 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 6 November 2026: valid until 6 April 2027.

It has had 3 MOTs. The latest, on 2 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 26,569 miles, which matches the advertised 29,946 miles.

Advertised mileage is about 6,300 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

18 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 25,560 miles. Price: £12,298, £197 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: 23,759 miles. Price: £12,300, £195 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, blue. Mileage: 23,724 miles. Price: £12,649, £154 more than this car. Dealer: Motorpoint Stockton-on-Tees in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-9e554e1def29

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue, 43 miles from this car. Mileage: 49,000 miles. Price: £10,695, £1,800 less than this car. Dealer: Premier Car Supermarket Northampton in Kettering. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-efd6d9c968f0