2026 Kia K4 1.0 T-GDi MHEV GT Line S

Price: £25,499. Fair price: £108 (under 1%) over the AskCar estimate of £25,391, our expected asking price for this car from its model, age, mileage and specification, drawing on 273 priced Kia K4 adverts on AskCar as of 2 November 2026.

AskCar lists 275 used Kia K4 from 136 UK dealerships, as of 2 November 2026.

Overview

  • Make: Kia
  • Model: K4
  • Trim: GT Line S
  • Version: 1.0 T-GDi Mhev GT Line S DCT FWD Euro 6 (s/s) 5dr (113 bhp)
  • Year: 2026
  • Mileage: 6,000 miles
  • Fuel: Petrol, mild hybrid
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.0 litres, 113 bhp
  • Gearbox: Automatic (DCT)
  • Drive: Front-wheel drive
  • Colour: Red
  • CO2: 132 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 Kia K4 GT Line S has covered 6,000 miles, around 2,600 more miles than is typical for its age. The AskCar estimate for this car is £25,391. It is priced at £25,499, which is £108 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 273 Kia K4 cars across different ages and specifications. It first appeared in our advert records 158 days ago. The seller is Alan Day (Colindale) (London), based in Barnet. 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: £108 (under 1%) over the AskCar estimate of £25,391.

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 273 priced Kia K4 adverts across different ages and specifications, as of 2 November 2026.

A 2026 Kia K4 with the 1.0 petrol engine is typically advertised at £23,800: the median of the 214 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2026 Kia K4 has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,249. Its asking price is now £25,499, £1,250 more.

Price changes recorded:

  • 28 May 2026: £24,249
  • 3 June 2026: £23,999
  • 10 June 2026: £24,199
  • 25 August 2026: £26,799
  • 15 October 2026: £25,499

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,600 miles higher than the median mileage of a 2026 Kia K4 on AskCar.

Similar cars

76 other 2026 Kia K4 GT Line S 1.0 petrol automatic hatchbacks are for sale at UK dealers, from £23,295 to £33,789, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2026 Kia K4 GT Line S, 1.0 petrol hatchback, red. Mileage: 6,000 miles. Price: £25,900, £401 more than this car. Dealer: FJ Chalke - Nissan, Yeovil in Yeovil. AskCar page: https://askcar.co.uk/car/kia-k4-2026-a1ec70919335
  • 2026 Kia K4 GT Line S, 1.0 petrol hatchback, white. Mileage: 6,041 miles. Price: £24,963, £536 less than this car. Dealer: Birchwood Kia Washington in Sompting. AskCar page: https://askcar.co.uk/car/kia-k4-2026-37a50ff43b2d
  • 2026 Kia K4 GT Line S, 1.0 petrol hatchback, grey. Mileage: 5,906 miles. Price: £24,495, £1,004 less than this car. Dealer: Grainger Motor Group Mantles Kia Royston in Royston. AskCar page: https://askcar.co.uk/car/kia-k4-2026-09726e82b48f
  • The nearest: 2026 Kia K4 GT Line S, 1.0 petrol hatchback, white, under a mile from this car. Mileage: 10 miles. Price: £25,899, £400 more than this car. Dealer: Alan Day (Colindale) (London) in London. AskCar page: https://askcar.co.uk/car/kia-k4-2026-3ed442d846a0

Browse all Kia K4 cars for sale · 2026 Kia K4 price guide

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Photos

20 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.