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: 12,008 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Yellow
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 12,008 miles, this 2023 Kia Stonic GT Line S has covered about 7,100 fewer miles than other 2023 Kia Stonic cars. Priced at £16,175, it is advertised £198 below the AskCar estimate of £16,373. The AskCar estimate uses 1,673 UK dealer adverts for the Kia Stonic, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 75 days ago. Its asking price has since fallen by £1,120. We checked its advertised mileage against the government's MOT record, and they match. The seller is Trust Ford Staines, based in Staines. 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: £198 (1%) under the AskCar estimate of £16,373.

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 2023 Kia Stonic with the 1.0 petrol engine is typically advertised at £14,800: the median of the 558 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Kia Stonic has been on sale for at least 75 days.

Price history

AskCar first saw this advert on 19 August 2026 at £17,295. Its asking price is now £16,175, £1,120 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 19 August 2026: £17,295
• 20 August 2026: £17,090
• 8 September 2026: £16,781
• 17 September 2026: £16,620
• 21 October 2026: £16,280
• 31 October 2026: £16,175

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 September 2027.

It has had 2 MOTs. The latest, on 2 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 12,113 miles, which matches the advertised 12,008 miles.

Advertised mileage is about 7,100 miles lower than the median mileage of a 2023 Kia Stonic on AskCar.

Similar cars

171 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 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 12,121 miles. Price: £16,498, £323 more than this car. Dealer: Arnold Clark Kilmarnock Hyundai Mg in Kilmarnock. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-a4b1cf23e8b4
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 11,806 miles. Price: £16,699, £524 more than this car. Dealer: Alan Day (Colindale) (London) in London. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1ab9c0b25ae7
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 11,701 miles. Price: £17,495, £1,320 more than this car. Dealer: Llandudno Kia in Llandudno. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1809167c8a85

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, white, 13 miles from this car. Mileage: 22,433 miles. Price: £11,395, £4,780 less than this car. Dealer: Top Gear Harrow in Harrow. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1b39233c7122