2025 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: 2025
• Mileage: 7,000 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 2025 Kia Stonic GT Line S is advertised with 7,000 miles on the clock. Its asking price of £18,999 is £1,395 below the AskCar estimate of £20,394. To work out the AskCar estimate, we analyse UK dealer adverts for 1,673 Kia Stonic cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 158 days, and its asking price has been cut by £5,491. You can find this car at Alan Day (Colindale) (London) in Barnet. 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: £1,395 (6%) under the AskCar estimate of £20,394.

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 2025 Kia Stonic with the 1.0 petrol engine is typically advertised at £17,000: the median of the 125 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2025 Kia Stonic has been on sale for at least 158 days, and its asking price has been cut by £5,491. About half of 2025 Kia Stonic cars are gone from sale within a month of being advertised: 111 of the 207 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 May 2026 at £24,490. Its asking price is now £18,999, £5,491 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 28 May 2026: £24,490
• 16 June 2026: £23,990
• 25 August 2026: £19,999
• 15 October 2026: £18,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 700 miles lower than the median mileage of a 2025 Kia Stonic on AskCar.

Similar cars

29 other 2025 Kia Stonic GT Line S 1.0 petrol automatic SUVs are for sale at UK dealers, from £15,950 to £23,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 7,000 miles. Price: £19,995, £996 more than this car. Dealer: Gravells in Hereford. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-d0393b40a56c
• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, yellow. Mileage: 6,851 miles. Price: £18,995, the same price as this car. Dealer: Fine Cars in Lee-on-the-Solent. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-e804ec920bbf
• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, white. Mileage: 7,798 miles. Price: £19,493, £494 more than this car. Dealer: West Riding Hyundai Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-82063b4919ee

• The nearest: 2025 Kia Stonic GT Line S, 1.0 petrol SUV, white, 16 miles from this car. Mileage: 2,500 miles. Price: £23,990, £4,991 more than this car. Dealer: JCB Kia Bromley in Bromley. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-af903b28f020