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: 23,945 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: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,945 miles on the clock, this 2025 Kia Stonic GT Line S has done roughly 16,100 more miles than a typical 2025 Kia Stonic. The AskCar estimate for this car is £17,488. It is priced at £17,995, which is £507 above that estimate. The AskCar estimate draws on 1,703 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 40 days ago. The seller is Gravells Swansea, based in Swansea. 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: £507 (2%) over the AskCar estimate of £17,488.

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 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 4 November 2026.

Time on sale

This 2025 Kia Stonic has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £17,995. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 16,100 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 4 November 2026.

The 3 closest to this car in mileage:

• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, black. Mileage: 18,064 miles. Price: £15,950, £2,045 less than this car. Dealer: South Croydon Motor Centre in Kenley. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-61376fe46d99
• 2025 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 16,623 miles. Price: £17,210, £785 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, grey. Mileage: 16,307 miles. Price: £17,790, £205 less than this car. Dealer: All Electric BYD Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-0912b8c98e3a

• The nearest: 2025 Kia Stonic GT Line S, 1.0 petrol SUV, yellow, 56 miles from this car. Mileage: 9,333 miles. Price: £19,995, £2,000 more than this car. Dealer: Howards Kia Taunton in Taunton. AskCar page: https://askcar.co.uk/car/kia-stonic-2025-5f09e3826899