2026 Kia K4 1.0 T-GDi MHEV GT Line S

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: 3,659 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: Black
• CO2: 132 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2026 Kia K4 GT Line S is 3,659 miles. Its asking price of £23,459 is £2,292 below the AskCar estimate of £25,751. The AskCar estimate uses 273 UK dealer adverts for the Kia K4, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 76 days ago. Its asking price has since fallen by £2,892. The seller is Citygate Kia Watford, based in Watford. 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

Good value: £2,292 (8%) under the AskCar estimate of £25,751.

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 76 days.

Price history

AskCar first saw this advert on 18 August 2026 at £26,351. Its asking price is now £23,459, £2,892 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 18 August 2026: £26,351
• 20 August 2026: £26,249
• 25 August 2026: £26,099
• 28 August 2026: £25,998
• 3 September 2026: £25,793
• 4 September 2026: £25,699
• 5 September 2026: £25,659
• 8 September 2026: £25,492
• 16 September 2026: £25,329
• 23 September 2026: £24,998
• 30 September 2026: £24,699
• 7 October 2026: £24,429
• 14 October 2026: £24,284
• 20 October 2026: £23,998
• 24 October 2026: £23,759
• 29 October 2026: £23,459

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 300 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, grey. Mileage: 3,664 miles. Price: £26,995, £3,536 more than this car. Dealer: Park's Motor Group Kia Bathgate in Bathgate. AskCar page: https://askcar.co.uk/car/kia-k4-2026-ff143559019c
• 2026 Kia K4 GT Line S, 1.0 petrol hatchback, grey. Mileage: 3,708 miles. Price: £24,998, £1,539 more than this car. Dealer: Arnold Clark Northwich Vauxhall / Kia in Northwich. AskCar page: https://askcar.co.uk/car/kia-k4-2026-da4cb4d0d362
• 2026 Kia K4 GT Line S, 1.0 petrol hatchback, white. Mileage: 3,727 miles. Price: £25,997, £2,538 more than this car. Dealer: Flear & Thomson (Stirling) in Stirling. AskCar page: https://askcar.co.uk/car/kia-k4-2026-d5d677c3b29d

• The nearest: 2026 Kia K4 GT Line S, 1.0 petrol hatchback, red, 7 miles from this car. Mileage: 6,000 miles. Price: £25,499, £2,040 more than this car. Dealer: Alan Day (Colindale) (London) in London. AskCar page: https://askcar.co.uk/car/kia-k4-2026-14ea140c61fe