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: 9,500 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: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Kia Stonic GT Line S has covered 9,500 miles, around 9,700 fewer miles than is typical for its age. The dealer is asking £16,850, which is £85 below the AskCar estimate of £16,935. 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 15 days ago. Its asking price has since fallen by £512. The seller is Drayton Motors Kia Boston, based in Boston. 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: £85 (under 1%) under the AskCar estimate of £16,935.

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 15 days.

Price history

AskCar first saw this advert on 20 October 2026 at £17,362. Its asking price is now £16,850, £512 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 20 October 2026: £17,362
• 21 October 2026: £16,990
• 31 October 2026: £16,914
• 4 November 2026: £16,850

Mileage and MOT

Advertised mileage is about 9,700 miles lower 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, yellow. Mileage: 9,657 miles. Price: £16,883, the same price as this car. Dealer: Vertu Kia Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-40f2afcd3f67
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 9,210 miles. Price: £16,386, £464 less than this car. Dealer: JCT600 Kia Castleford in Castleford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-4d683afdd4e2
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 9,834 miles. Price: £16,299, £551 less than this car. Dealer: Pine Lodge Cars in Whitchurch. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-dd56ff2fee60

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, yellow, 24 miles from this car. Mileage: 12,686 miles. Price: £16,250, £600 less than this car. Dealer: Grainger Motor Group in King's Lynn. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-37a61d283a1e