2023 Kia Stonic 1.0 GT Line

Overview

• Make: Kia
• Model: Stonic
• Trim: GT Line
• Version: 1.0 T-GDi GT Line DCT FWD Euro 6 5dr
• Year: 2023
• Mileage: 11,425 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Kia Stonic GT Line is advertised with 11,425 miles, approximately 7,800 below the typical mileage for its age. The dealer is asking £15,320, which is £790 below the AskCar estimate of £16,110. To work out the AskCar estimate, we analyse UK dealer adverts for 1,707 Kia Stonic cars across different ages and specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. 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 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £790 (4%) under the AskCar estimate of £16,110.

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 1,707 priced Kia Stonic adverts across different ages and specifications, as of 10 November 2026.

A 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,700: the median of the 574 for sale on AskCar, as of 10 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: 367 of the 910 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £15,320. 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 10 November 2026: valid until 28 September 2027.

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

There were no advisories at the latest test.

Mileage at that test: 10,918 miles, which matches the advertised 11,425 miles.

Advertised mileage is about 7,800 miles lower than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

72 other 2023 Kia Stonic GT Line 1.0 petrol automatic SUVs are for sale at UK dealers, from £13,281 to £17,495, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line, 1.0 petrol SUV, blue. Mileage: 11,567 miles. Price: £16,295, £975 more than this car. Dealer: Brayleys Cars Brayley Honda Enfield in Enfield. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1383b103749f
• 2023 Kia Stonic GT Line, 1.0 petrol SUV, red. Mileage: 11,107 miles. Price: £15,607, £287 more than this car. Dealer: Perrys Rotherham in Rotherham. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-2eb1b8d82f4f
• 2023 Kia Stonic GT Line, 1.0 petrol SUV, blue. Mileage: 11,000 miles. Price: £15,499, £179 more than this car. Dealer: Alex Scott Guidepost in Guide Post. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-37ddb0d3b01b

• The nearest: 2023 Kia Stonic GT Line, 1.0 petrol SUV, yellow, under a mile from this car. Mileage: 12,405 miles. Price: £14,767, £553 less than this car. Dealer: JCT600 Kia Castleford in Castleford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-690a9e625389