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: 2,658 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 2,658 miles, this 2023 Kia Stonic GT Line S has covered about 16,500 fewer miles than other 2023 Kia Stonic cars. Its asking price of £16,336 is £1,080 below the AskCar estimate of £17,416. The AskCar estimate draws on 1,673 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 44 days ago, the asking price has dropped by £989. We checked its advertised mileage against the government's MOT record, and they match. The seller is Carsa Portsmouth, based in Portsmouth. 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: £1,080 (6%) under the AskCar estimate of £17,416.

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 44 days.

Price history

AskCar first saw this advert on 19 September 2026 at £17,325. Its asking price is now £16,336, £989 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 19 September 2026: £17,325
• 1 October 2026: £16,900
• 7 October 2026: £16,307
• 9 October 2026: £16,561
• 16 October 2026: £16,336

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 July 2027.

It has had one MOT, on 1 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 2,372 miles, which matches the advertised 2,658 miles.

Advertised mileage is about 16,500 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, blue. Mileage: 3,113 miles. Price: £17,995, £1,659 more than this car. Dealer: Sandown Kia Salisbury in Salisbury. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-b668f962b655
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, red. Mileage: 3,677 miles. Price: £17,499, £1,163 more than this car. Dealer: EMG Motor Group Thetford Kia in Thetford. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-1b055e92f44d
• 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 3,762 miles. Price: £16,999, £663 more than this car. Dealer: Sutton Park Coventry in Coventry. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-c36cd2a9b893

• The nearest: 2023 Kia Stonic GT Line S, 1.0 petrol SUV, grey, 1 miles from this car. Mileage: 21,294 miles. Price: £15,599, £737 less than this car. Dealer: Hendy Car Store Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/kia-stonic-2023-e049ca4eb2b5