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: 27,797 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 27,797 miles on the clock, this 2021 Kia Stonic GT Line has done roughly 8,400 fewer miles than a typical 2021 Kia Stonic. Its asking price of £12,171 is £288 below the AskCar estimate of £12,459. 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 26 days ago, and its asking price has since fallen by £408. Its advertised mileage matches the government's MOT record. It is advertised by Acorn Kia St Helens in St. Helens. 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: £288 (2%) under the AskCar estimate of £12,459.

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 26 days.

Price history

AskCar first saw this advert on 9 October 2026 at £12,579. Its asking price is now £12,171, £408 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 9 October 2026: £12,579
• 10 October 2026: £12,436
• 13 October 2026: £12,382
• 17 October 2026: £12,324
• 22 October 2026: £12,455
• 24 October 2026: £12,304
• 29 October 2026: £12,171

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 27 August 2027.

It has had 3 MOTs. The latest, on 28 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,393 miles, which matches the advertised 27,797 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, red. Mileage: 27,788 miles. Price: £12,150, the same price as this car. Dealer: Ray Chapman Motors. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-c01f09aeb706
• 2021 Kia Stonic GT Line, 1.0 petrol SUV, blue. Mileage: 24,210 miles. Price: £12,495, £324 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, £172 less than this car. Dealer: Hendy Nissan - Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-e3c5f63bbab8

• The nearest: 2021 Kia Stonic GT Line, 1.0 petrol SUV, black, 12 miles from this car. Mileage: 49,119 miles. Price: £11,998, £173 less than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-d5af328afa4d