2021 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 (118 bhp)
• Year: 2021
• Mileage: 29,683 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 1.0 litres, 118 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Kia Stonic GT Line S is advertised with 29,683 miles, approximately 5,900 below the typical mileage for its age. The AskCar estimate for this car is £13,780. It is priced at £13,291, which is £489 below that estimate. The AskCar estimate draws on 1,699 Kia Stonic adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 63 days ago. Its asking price has since fallen by £334. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Pentagon Burton in Burton-on-Trent. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £489 (3%) under the AskCar estimate of £13,780.

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 1,699 priced Kia Stonic adverts across different ages and specifications, as of 7 November 2026.

A 2021 Kia Stonic with the 1.0 petrol engine is typically advertised at £11,500: the median of the 133 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Kia Stonic has been on sale for at least 63 days.

Price history

AskCar first saw this advert on 5 September 2026 at £13,625. Its asking price is now £13,291, £334 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 7 September 2026: £13,625
• 15 September 2026: £13,902
• 24 September 2026: £13,625
• 30 September 2026: £13,842
• 6 October 2026: £13,655
• 18 October 2026: £13,554
• 27 October 2026: £13,403
• 7 November 2026: £13,291

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 20 February 2027.

It has had 3 MOTs. The latest, on 17 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 28,231 miles, which matches the advertised 29,683 miles.

Advertised mileage is about 5,900 miles lower than the median mileage of a 2021 Kia Stonic on AskCar.

Similar cars

15 other 2021 Kia Stonic GT Line S 1.0 petrol automatic SUVs are for sale at UK dealers, from £10,195 to £15,495, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 30,306 miles. Price: £13,990, £699 more than this car. Dealer: Lloyd West Cumbria Kia in Workington. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-eb2ca055d9d3
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, grey. Mileage: 30,306 miles. Price: £13,990, £699 more than this car. Dealer: Lloyd West Cumbria Kia in Workington. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-f6190673d59b
• 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue. Mileage: 29,019 miles. Price: £13,704, £413 more than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-668a6abb4916

• The nearest: 2021 Kia Stonic GT Line S, 1.0 petrol SUV, blue, 3 miles from this car. Mileage: 26,694 miles. Price: £13,510, £219 more than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/kia-stonic-2021-4efb1e00df2d