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: 6,670 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• 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 6,670 miles, around 12,400 fewer miles than is typical for its age. The dealer is asking £16,889, which is £140 below the AskCar estimate of £17,029. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. Since we first spotted the advert 33 days ago, the asking price has dropped by £710. Its advertised mileage matches the government's MOT record. The seller is Halliwell Jones KIA Southport, based in Southport. 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: £140 (under 1%) under the AskCar estimate of £17,029.

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 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £17,599. Its asking price is now £16,889, £710 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 30 September 2026: £17,599
• 13 October 2026: £17,349
• 17 October 2026: £17,249
• 21 October 2026: £17,149
• 25 October 2026: £16,999
• 27 October 2026: £16,899
• 30 October 2026: £16,889

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 26 July 2027.

It has had one MOT, on 27 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 6,858 miles, which matches the advertised 6,670 miles.

Advertised mileage is about 12,400 miles lower 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, blue. Mileage: 6,638 miles. Price: £16,998, £109 more than this car. Dealer: Arnold Clark in Stourbridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-2fa688369b54
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, black. Mileage: 6,582 miles. Price: £16,150, £739 less than this car. Dealer: Evans Halshaw Kia Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-de1957243060
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 6,793 miles. Price: £17,998, £1,109 more than this car. Dealer: Arnold Clark East Kilbride Motorstore in East Kilbride. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-85341df300a7

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red, under a mile from this car. Mileage: 6,391 miles. Price: £16,699, £190 less than this car. Dealer: Halliwell Jones KIA Southport in Southport. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-027454511607