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
• Year: 2023
• Mileage: 21,786 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Kia Stonic GT Line S is advertised with 21,786 miles, approximately 2,600 above the typical mileage for its age. The AskCar estimate for this car is £15,678. It is priced at £15,750, which is £72 above that estimate. The AskCar estimate draws on 1,703 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert today. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Fish Brothers Kia in Swindon. 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: £72 (under 1%) over the AskCar estimate of £15,678.

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 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,800: the median of the 574 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2023 Kia Stonic advertised today. About 4 in 10 of 2023 Kia Stonic cars are gone from sale within a month of being advertised: 344 of the 842 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £15,750. 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 4 November 2026: valid until 9 June 2027.

It has had one MOT, on 10 June 2026, and passed.

Advisories at the latest test: nearside rear tyre slightly damaged.

Mileage at that test: 21,357 miles, which matches the advertised 21,786 miles.

Advertised mileage is about 2,600 miles higher than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

175 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 21,855 miles. Price: £16,291, £541 more than this car. Dealer: Peter Cooper Kia Hedge End in Hedge End. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-3546596d16c9
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, yellow. Mileage: 21,935 miles. Price: £15,131, £619 less than this car. Dealer: D. M. Keith in Bradford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-c4b1ba873a8d
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 21,555 miles. Price: £14,990, £760 less than this car. Dealer: Trust Ford Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-c253f57e970f

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red, under a mile from this car. Mileage: 7,908 miles. Price: £17,500, £1,750 more than this car. Dealer: Fish Brothers Kia in Swindon. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-642a92c81fb6