2023 Kia Stonic 1.0 T-GDi GT Line

Overview

• Make: Kia
• Model: Stonic
• Trim: GT Line
• Version: 1.0 T-GDi 99 GT Line DCT FWD Euro 6 5dr (99 bhp)
• Year: 2023
• Mileage: 12,405 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 99 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Yellow
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 12,405 miles on the clock, this 2023 Kia Stonic GT Line has done roughly 6,700 fewer miles than a typical 2023 Kia Stonic. The AskCar estimate for this car is £15,692. It is priced at £15,000, which is £692 below that estimate. The AskCar estimate uses 1,673 UK dealer adverts for the Kia Stonic, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 104 days ago. Its asking price has since fallen by £1,760. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is JCT600 Kia Castleford, based in Castleford. 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: £692 (4%) under the AskCar estimate of £15,692.

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

This 2023 Kia Stonic has been on sale for at least 104 days.

Price history

AskCar first saw this advert on 21 July 2026 at £16,760. Its asking price is now £15,000, £1,760 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 22 July 2026: £16,760
• 4 August 2026: £16,384
• 13 August 2026: £16,219
• 18 August 2026: £16,000
• 27 August 2026: £15,934
• 5 September 2026: £16,000
• 13 September 2026: £15,855
• 21 September 2026: £15,841
• 30 September 2026: £15,768
• 9 October 2026: £15,596
• 18 October 2026: £15,395
• 27 October 2026: £15,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 3 July 2027.

It has had one MOT, on 1 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 12,010 miles, which matches the advertised 12,405 miles.

Advertised mileage is about 6,700 miles lower than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

60 other 2023 Kia Stonic GT Line 1.0 petrol automatic SUVs are for sale at UK dealers, from £10,809 to £17,495, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line, 1.0 petrol SUV, red. Mileage: 12,103 miles. Price: £16,282, £1,282 more than this car. Dealer: Flear & Thomson (DUNFERMLINE) in Dunfermline. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-a603076a7312
• 2023 Kia Stonic GT Line, 1.0 petrol SUV, red. Mileage: 12,800 miles. Price: £16,298, £1,298 more than this car. Dealer: Arnold Clark Chesterfield Motorstore / Vanstore in Chesterfield. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-fb494cc04fcf
• 2024 Kia Picanto GT Line, 1.0 petrol hatchback, blue. Mileage: 11,949 miles. Price: £12,995, £2,005 less than this car. Dealer: Brayleys Cars Brayley Honda Enfield in Enfield. AskCar page: https://askcar.co.uk/car/kia-picanto-2024-18dbc44da8f6

• The nearest: 2023 Kia Stonic GT Line, 1.0 petrol SUV, blue, 10 miles from this car. Mileage: 14,293 miles. Price: £16,298, £1,298 more than this car. Dealer: Arnold Clark Leeds Motorstore in Leeds. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-f5eef31af5e6