2023 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: 2023
• Mileage: 69,255 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

At 69,255 miles, this 2023 Kia Stonic GT Line S has covered about 50,100 more miles than other 2023 Kia Stonic cars. Priced at £12,496, it is advertised £246 above the AskCar estimate of £12,250. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. We first recorded this advert 5 days ago, and its asking price has since fallen by £4. Its advertised mileage matches the government's MOT record. The seller is Quality Part X Dunstable, based in Dunstable. 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: £246 (2%) over the AskCar estimate of £12,250.

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 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,800: the median of the 558 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2023 Kia Stonic advertised 5 days ago. About 4 in 10 of 2023 Kia Stonic cars are gone from sale within a month of being advertised: 328 of the 810 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 October 2026 at £12,500. Its asking price is now £12,496, £4 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 28 October 2026: £12,500
• 2 November 2026: £12,496

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 24 September 2027.

It failed its MOT on 23 September 2026 (engine MIL inoperative or indicates a malfunction; rear tyre(s) of different sizes are fitted on the same axle) and passed 2 days later, on 25 September 2026.

There were no advisories at the latest test.

Mileage at that test: 69,255 miles, which matches the advertised 69,255 miles.

Advertised mileage is about 50,100 miles higher than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

171 other 2023 Kia Stonic GT Line S 1.0 petrol automatic SUVs are for sale at UK dealers, from £11,395 to £17,998, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 66,694 miles. Price: £11,995, £501 less than this car. Dealer: Rox Cars in Aldridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1875fef108f4
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 65,429 miles. Price: £12,950, £454 more than this car. Dealer: Beech Garage Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-6fbb60ef53ee
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, yellow. Mileage: 61,777 miles. Price: £11,895, £601 less than this car. Dealer: Lloyd South Lakes Kia in Kendal. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-76c941c308fd

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, white, 2 miles from this car. Mileage: 19,935 miles. Price: £16,250, £3,754 more than this car. Dealer: Brayleys Cars Brayley KIA Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-361a05bdb6c4