2025 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 (98 bhp)
• Year: 2025
• Mileage: 14,040 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 98 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 14,040 miles on the clock, this 2025 Kia Stonic GT Line S has done roughly 6,400 more miles than a typical 2025 Kia Stonic. The AskCar estimate for this car is £18,187. It is priced at £18,998, which is £811 above that estimate. The AskCar estimate uses UK dealer asking prices, including 1,673 Kia Stonic adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 4 days ago. The seller is Arnold Clark Cumbernauld Kia, based in Cumbernauld. 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: £811 (4%) over the AskCar estimate of £18,187.

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

AskCar first saw this 2025 Kia Stonic advertised 4 days ago. 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 29 October 2026 at £18,998. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 6,400 miles higher 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, grey. Mileage: 16,307 miles. Price: £17,790, £1,208 less than this car. Dealer: All Electric BYD Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-0912b8c98e3a
• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 16,623 miles. Price: £17,210, £1,788 less than this car. Dealer: JCT600 Kia Castleford in Castleford. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-7b3f486aaf04
• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, black. Mileage: 18,064 miles. Price: £15,950, £3,048 less than this car. Dealer: South Croydon Motor Centre in Kenley. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-61376fe46d99

• The nearest: 2025 Kia Stonic GT Line S, 1.0 petrol SUV, yellow, 10 miles from this car. Mileage: 9,778 miles. Price: £18,998, the same price as this car. Dealer: Arnold Clark Glasgow London Road Motorstore / Vanstore in Glasgow. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-03f2dfae53dd