2021 Kia Stonic 1.0 T-GDi MHEV GT Line

Overview

• Make: Kia
• Model: Stonic
• Trim: GT Line
• Version: 1.0 T-GDi Mhev GT Line Manual FWD Euro 6 (s/s) 5dr (118 bhp)
• Year: 2021
• Mileage: 27,788 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Red
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Kia Stonic GT Line is advertised with 27,788 miles, approximately 8,400 below the typical mileage for its age. Its asking price of £12,150 is £310 below the AskCar estimate of £12,460. The AskCar estimate draws on 1,703 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 34 days ago, and its asking price has since fallen by £145. The government's MOT record matches its advertised mileage. 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: £310 (2%) under the AskCar estimate of £12,460.

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 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,600: the median of the 139 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Kia Stonic has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 1 October 2026 at £12,295. Its asking price is now £12,150, £145 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 1 October 2026: £12,295
• 8 October 2026: £12,290
• 16 October 2026: £12,240
• 20 October 2026: £12,150

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 20 October 2027.

It has had 3 MOTs. The latest, on 22 September 2026, passed.

Advisories at the latest test: front brake pad(s) wearing thin.

Mileage at that test: 27,712 miles, which matches the advertised 27,788 miles.

Advertised mileage is about 8,400 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

22 other 2021 Kia Stonic GT Line 1.0 petrol manual SUVs are for sale at UK dealers, from £9,595 to £12,495, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line, 1.0 petrol SUV, black. Mileage: 27,797 miles. Price: £12,171, the same price as this car. Dealer: Acorn Kia St Helens in St Helens. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-3d7acd1ab37c
• 2021 Kia Stonic GT Line, 1.0 petrol SUV, blue. Mileage: 24,210 miles. Price: £12,495, £345 more than this car. Dealer: Park's Coatbridge Kia in Coatbridge. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-b458e44b4253
• 2021 Kia Stonic GT Line, 1.0 petrol SUV, red. Mileage: 33,480 miles. Price: £11,999, £151 less than this car. Dealer: Hendy Nissan - Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-e3c5f63bbab8