2026 Kia K4 1.0 T-GDi MHEV GT Line S

Price: £25,899. Fair price: £2,044 (7%) under the AskCar estimate of £27,943, 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: 10 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: White
  • CO2: 132 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 Kia K4 GT Line S is advertised with 10 miles, approximately 3,400 below the typical mileage for its age. Priced at £25,899, it is advertised £2,044 below the AskCar estimate of £27,943. The AskCar estimate uses 273 UK dealer adverts for the Kia K4, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 14 days. It is advertised by Alan Day (Colindale) (London) 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: £2,044 (7%) under the AskCar estimate of £27,943.

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 14 days.

Price history

AskCar first saw this advert on 19 October 2026 at £25,899. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,400 miles lower 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, black. Mileage: 10 miles. Price: £26,495, £596 more than this car. Dealer: SG Petch Sunderland in Sunderland. AskCar page: https://askcar.co.uk/car/kia-k4-2026-32a7705d77d6
  • 2026 Kia K4 GT Line S, 1.0 petrol hatchback, blue. Mileage: 10 miles. Price: £27,299, £1,400 more than this car. Dealer: Lookers Kia Chester in Chester. AskCar page: https://askcar.co.uk/car/kia-k4-2026-fab646b2a0c1
  • 2026 Kia K4 GT Line S, 1.0 petrol hatchback, white. Mileage: 13 miles. Price: £33,789, £7,890 more than this car. Dealer: Group 1 Kia Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/kia-k4-2026-a48084913404
  • The nearest: 2026 Kia K4 GT Line S, 1.0 petrol hatchback, red, under a mile from this car. Mileage: 6,000 miles. Price: £25,499, £400 less than this car. Dealer: Alan Day (Colindale) (London) in London. AskCar page: https://askcar.co.uk/car/kia-k4-2026-14ea140c61fe

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

More like this

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.