2023 Kia Stonic 1.0 GT Line S

Overview

• Make: Kia
• Model: Stonic
• Trim: GT Line S
• Version: 1.0 T-GDi GT Line S DCT FWD Euro 6 5dr
• Year: 2023
• Mileage: 21,241 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Red
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 21,241 miles on the clock, this 2023 Kia Stonic GT Line S has done roughly 2,100 more miles than a typical 2023 Kia Stonic. The dealer is asking £15,995, which is £133 below the AskCar estimate of £16,128. To work out the AskCar estimate, we analyse UK dealer adverts for 1,703 Kia Stonic cars across different ages and specifications. We first saw this car advertised 160 days ago. Its asking price has since fallen by £1,300. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is JCB Group Ashford Orbital Kia, based in Ashford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £133 (under 1%) under the AskCar estimate of £16,128.

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 1,703 priced Kia Stonic adverts across different ages and specifications, as of 4 November 2026.

A 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,800: the median of the 574 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Kia Stonic has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £17,295. Its asking price is now £15,995, £1,300 less. The latest price cut was seen on 23 September 2026.

Price changes recorded:

• 4 June 2026: £17,295
• 6 June 2026: £17,095
• 18 June 2026: £16,995
• 27 June 2026: £16,795
• 10 July 2026: £16,695
• 28 July 2026: £16,495
• 10 August 2026: £16,295
• 29 August 2026: £16,495
• 16 September 2026: £16,395
• 23 September 2026: £15,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 3 June 2027.

It has had one MOT, on 4 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 21,243 miles, which matches the advertised 21,241 miles.

Advertised mileage is about 2,100 miles higher than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

175 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 21,294 miles. Price: £15,599, £396 less than this car. Dealer: Hendy Car Store Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-e049ca4eb2b5
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 21,005 miles. Price: £15,599, £396 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, grey. Mileage: 21,555 miles. Price: £14,990, £1,005 less than this car. Dealer: Trust Ford Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-c253f57e970f

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, blue, under a mile from this car. Mileage: 4,393 miles. Price: £17,495, £1,500 more than this car. Dealer: JCB Group Ashford Orbital Kia in Ashford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-08de974495a2