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: 10,405 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

At 10,405 miles, this 2023 Kia Stonic GT Line S has covered about 8,700 fewer miles than other 2023 Kia Stonic cars. The dealer is asking £17,495, which is £1,005 above the AskCar estimate of £16,490. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. We have tracked this advert for 5 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Llandudno Kia, based in Llandudno. 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: £1,005 (6%) over the AskCar estimate of £16,490.

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 £17,495. 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 2 November 2026: valid until 11 August 2027.

It has had one MOT, on 12 August 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 9,707 miles, which matches the advertised 10,405 miles.

Advertised mileage is about 8,700 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, grey. Mileage: 10,399 miles. Price: £17,495, the same price as this car. Dealer: Group 1 Kia Coulsdon in Coulsdon. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1ab19bdf2150
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 10,472 miles. Price: £15,990, £1,505 less than this car. Dealer: The Donalds Group Donalds Kia Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-b1bf0427cf00
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, black. Mileage: 10,316 miles. Price: £16,863, £632 less than this car. Dealer: TMS Kia Leicester in Leicester. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-c19b75eb4f65

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red, under a mile from this car. Mileage: 11,701 miles. Price: £17,495, the same price as this car. Dealer: Llandudno Kia in Llandudno. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1809167c8a85