2023 Kia Stonic 1.0 GT Line S

Version: 1.0 T-GDi GT Line S DCT FWD Euro 6 5dr

Price: £16,797. Fair price: £192 (1%) under the AskCar estimate of £16,989, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,685 priced Kia Stonic adverts on AskCar as of 1 November 2026.

AskCar lists 1,704 used Kia Stonic from 786 UK dealerships, as of 1 November 2026.

Overview

Make
Kia
Model
Stonic
Trim
GT Line S
Version
1.0 T-GDi GT Line S DCT FWD Euro 6 5dr
Mileage
9,464 miles
Year
2023
Fuel type
Petrol
Body type
SUV
Engine
1.0 L
Gearbox
Automatic
Seats
5
CO2
129 g/km
Colour
Red
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
DCT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 9,464 miles, this 2023 Kia Stonic GT Line S has covered about 9,400 fewer miles than other 2023 Kia Stonic cars. The dealer is asking £16,797, which is £192 below the AskCar estimate of £16,989. To work out the AskCar estimate, we analyse UK dealer adverts for 1,685 Kia Stonic cars across different ages and specifications. We first recorded this advert 54 days ago, and its asking price has since fallen by £701. MOT records show an expiry date of 29 May 2027, and the latest recorded mileage is consistent with the advert. The seller is Allen Motor Group Milton Keynes Kia, based in Milton Keynes.

Stock data as of 1 November 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 8 September 2026, 54 days ago. Price reduced by £701 from £17,498 since AskCar first saw it. 9 price reductions recorded, the latest seen on 31 October 2026.

Recorded asking prices
Date observedAsking price
8 September 2026£17,498
19 September 2026£17,288
20 September 2026£17,230
27 September 2026£17,200
5 October 2026£17,134
11 October 2026£17,034
17 October 2026£17,020
22 October 2026£16,931
25 October 2026£16,854
31 October 2026£16,797
1 November 2026£16,797

Price and mileage comparison

Fair price: £192 (1%) under the AskCar estimate of £16,989.

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 1,685 priced Kia Stonic adverts across different ages and specifications, as of 1 November 2026.

Advertised mileage is about 9,400 miles lower than the median mileage of a 2023 Kia Stonic on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 29 May 2027. 8,733 miles at the last test.

Other matching cars

173 other 2023 Kia Stonic GT Line S automatic petrol cars are for sale at UK dealers from £11,395 to £17,998, as of 1 November 2026.

The 5 cheapest:

The 173 matching cars have covered 2,658 to 69,255 miles, compared with 9,464 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all Kia Stonic cars for sale · 2023 Kia Stonic price guide

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Photos

32 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.