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: 20,765 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: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Kia Stonic GT Line S has covered 20,765 miles. The dealer is asking £16,565, which is £475 above the AskCar estimate of £16,090. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. We first saw this car advertised 45 days ago. Its asking price has since fallen by £2,430. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at WJ King KIA in Sidcup. 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: £475 (2%) over the AskCar estimate of £16,090.

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 45 days.

Price history

AskCar first saw this advert on 18 September 2026 at £18,995. Its asking price is now £16,565, £2,430 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 18 September 2026: £18,995
• 25 September 2026: £17,235
• 7 October 2026: £16,895
• 9 October 2026: £16,865
• 16 October 2026: £16,765
• 26 October 2026: £16,565

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 September 2027.

It has had one MOT, on 14 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,766 miles, which matches the advertised 20,765 miles.

Advertised mileage is about 1,700 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: 20,851 miles. Price: £15,995, £570 less than this car. Dealer: JCB Group Ashford Orbital Kia in Ashford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-7f1ba0ea3f4e
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 21,005 miles. Price: £15,649, £916 less than this car. Dealer: Motorpoint Manchester in Manchester. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-07ff14030be6
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, yellow. Mileage: 20,310 miles. Price: £15,998, £567 less than this car. Dealer: Arnold Clark Winsford Vauxhall in Winsford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-2bda8db649f2

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey, 5 miles from this car. Mileage: 10,000 miles. Price: £17,695, £1,130 more than this car. Dealer: JCB Kia Bromley in Bromley. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-27d7e3d1822b