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
• Year: 2023
• Mileage: 50,229 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• 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 is advertised with 50,229 miles, approximately 30,800 above the typical mileage for its age. The dealer is asking £13,449, which is £51 below the AskCar estimate of £13,500. To work out the AskCar estimate, we analyse UK dealer adverts for 1,699 Kia Stonic cars across different ages and specifications. We first recorded this car for sale 2 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Carsa Gloucester, based in Gloucester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £51 (under 1%) under the AskCar estimate of £13,500.

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 1,699 priced Kia Stonic adverts across different ages and specifications, as of 7 November 2026.

A 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,700: the median of the 562 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2023 Kia Stonic advertised 2 days ago. About 4 in 10 of 2023 Kia Stonic cars are gone from sale within a month of being advertised: 358 of the 879 first advertised between 11 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £13,449. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 22 June 2027.

It failed its MOT on 1 June 2026 (front brake pad(s) less than 1.5 mm thick; offside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 2 days later, on 3 June 2026.

There were no advisories at the latest test.

Mileage at that test: 42,160 miles, which matches the advertised 50,229 miles.

Advertised mileage is about 30,800 miles higher than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

169 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 7 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 51,005 miles. Price: £12,750, £699 less than this car. Dealer: Rox Cars in Aldridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-e86ee0428c62
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 45,943 miles. Price: £13,298, £151 less than this car. Dealer: Drive Motor Retail drivedirect Aldershot in Aldershot. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-87357e02d5ce
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 44,599 miles. Price: £13,851, £402 more than this car. Dealer: Drive Motor Retail drivedirect Weston-super-Mare MG in Weston-super-Mare. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-df58ece13c40

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, blue, 19 miles from this car. Mileage: 17,000 miles. Price: £16,324, £2,875 more than this car. Dealer: P J Nicholls Ltd Pershore in Pershore. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-b4d06875b026