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2026 Kia K4 • Compare 92 used cars with valuation

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Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£25,928

Good price

You save £2,072

CM14 4NS Essex, Essex

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Carwow

2026

(2026) Kia K4 GT-Line S 115 HP

£26,495

Good price

You save £2,605

RG21 6XQ Hampshire, Hampshire

132 g CO2/km comb. - 115 HP (84 kW) - 5.6 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 114 HP

£27,526

Super price

You save £4,674

BN457ED

132 g CO2/km comb. - 114 HP (83 kW) - 5.7 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£26,576

Fair price

You save £1,324

RM6 6EE Greater London, London

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

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1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0 T-GDi MHEV GT-Line S Hatchback

Feb 2026
3,363 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
CO2 emissions: 132 g CO2/km comb.
48.7 mpg
Details

Good price

£27,112

£27,307

Motors.co.uk

FY4 2RP Blackpool, Lancashire

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1 / 1

Used (2026) Kia K4 GT-Line 147 HP | Super price

Hatchback (2026/75)1.6T-GDi 150

2026
2,000 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
43.5 mpg
Details

Super price

£24,989

Parkers.co.uk

Durham, Durham

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-10%

1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0T-GDi 115 48V GT-Line S 5dr

2026
6,366 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,878

£29,995

Motors.co.uk

RG2 0ST Berkshire, Berkshire

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1 / 1

Used (2026) Kia K4 GT-Line 115 HP | Good price

1.0T-GDi 115 48V GT-Line 5dr

2026
5,000 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,899

£26,973

Motors.co.uk

LE10 0NF Leicestershire, Leicestershire

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Carwow

2026

(2026) Kia K4 GT-Line S 115 HP

£27,094

Good price

You save £1,906

WC1E 7DP Greater London, London

132 g CO2/km comb. - 115 HP (84 kW) - 5.6 Mpg

Carwow Leasing

2026

(2026) Kia K4 GT-Line 114 HP

£30,250

Fair price

Estimated price £29,020

IP24 1HT Norfolk, Norfolk

132 g CO2/km comb. - 114 HP (83 kW) - 5.7 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£27,850

Fair price

You save £150

Essex, Essex

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£25,499

Super price

You save £5,601

HD16AP

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

1 / 1

Used (2026) Kia K4 GT-Line 147 HP | Good price

1.6T-GDi 150 GT-Line 5dr DCT

2026
5,419 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
43.5 mpg
Details

Good price

£26,595

Motors.co.uk

CA3 0ET Cumberland, Cumbria

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1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0T-GDi 115 48V GT-Line S 5dr

2026
6,572 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,695

Motors.co.uk

OX26 4PZ Oxfordshire, Oxfordshire

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1 / 4

New (2026) Kia K4 GT-Line 115 HP | Super price

1.0T-GDi 115 48V GT-Line 5dr

2026
384 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Super price

£25,995

Motors.co.uk

TR27 5JR Cornwall, Cornwall

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-2%

1 / 4

Used (2026) Kia K4 GT-Line 115 HP | Good price

1.0T-GDi 115 48V GT-Line 5dr

2026
3,082 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,290

£27,000

Motors.co.uk

LS12 6HG Holbeck, West Yorkshire

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Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0T-GDi 115 48V GT-Line S 5dr

2026
7,999 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,995

Honestjohn

WC1E 7DP Greater London, London

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1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0T-GDi 115 48V GT-Line S 5dr

2026
3,036 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£27,495

Motors.co.uk

TR9 6QN Indian Queens, Cornwall

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Carwow

2025

(2025) Kia K4 GT-Line S 179 HP

£29,032

Good price

You save £2,468

WC1E 7DP Greater London, London

152 g CO2/km comb. - 179 HP (131 kW) - 6.8 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£25,888

Good price

You save £2,112

S817AE

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£25,580

Super price

You save £5,720

S601TU

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Carwow

2025

(2025) Kia K4 GT-Line 150 HP

£24,595

Good price

You save £3,305

WC1E 7DP Greater London, London

148 g CO2/km comb. - 150 HP (110 kW) - 44.0 Mpg

1 / 4

Used (2026) Kia K4 GT-Line 115 HP | Super price

1.0 T-GDi MHEV GT-Line DCT Euro 6

Mar 2026
2,000 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
CO2 emissions: 130 g CO2/km comb.
49.5 mpg
Details

Super price

£25,549

£23,769

Motors.co.uk

FY4 2RP Blackpool, Lancashire

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1 / 4

Used (2026) Kia K4 GT-Line 115 HP | Super price

1.0 T-GDi MHEV GT-Line DCT Euro 6

Mar 2026
2,500 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
CO2 emissions: 130 g CO2/km comb.
5.6 mpg
Details

Super price

£25,475

£23,769

Motors.co.uk

FY4 2RP Blackpool, Lancashire

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-16%

1 / 2

Used (2026) Kia K4 GT-Line 147 HP | Super price

1.6T-GDi 150 GT-Line 5dr DCT

2026
2,000 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
5.8 mpg
Details

Super price

£24,989

£29,995

Motors.co.uk

DH7 8AB Brandon, Durham

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1 / 4

New (2026) Kia K4 GT-Line 115 HP | Super price

1.0 T-GDi MHEV GT-Line Hatchback

Mar 2026
1,095 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
CO2 emissions: 130 g CO2/km comb.
5.6 mpg
Details

Super price

£26,084

£23,769

Motors.co.uk

FY4 2RP Blackpool, Lancashire

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1 / 4

Used (2026) Kia K4 GT-Line 115 HP | Super price

1.0 T-GDi MHEV GT-Line Hatchback

Mar 2026
6,934 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
CO2 emissions: 130 g CO2/km comb.
5.6 mpg
Details

Super price

£25,975

£23,769

Motors.co.uk

FY4 2RP Blackpool, Lancashire

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1 / 4

New (2026) Kia K4 GT-Line 147 HP | Good price

1.6T-GDi 150 GT-Line 5dr DCT

2026
1,300 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
43.5 mpg
Details

Good price

£25,998

Dealer

L8 6PZ Merseyside, Merseyside

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1 / 4

Used (2026) Kia K4 GT-Line 115 HP | Good price

1.0T-GDi 115 48V GT-Line 5dr

2026
3,117 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,500

Buyacar

Delivered to you

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New

1 / 4

Used (2026) Kia K4 115 HP | Good price

1.0T-GDi 115 48V Pure 5dr

2026
4,086 miles
1.0L Petrol
Hatchback
Manual
115 HP (84 kW)
5.6 mpg
Details

Good price

£23,680

Exchange and Mart

Buckinghamshire, Buckinghamshire

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New (2026) Kia K4 GT-Line 115 HP | Good price

1.0 T-GDi MHEV GT-Line DCT Euro 6

2026
500 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£26,790

Exchange and Mart

Suffolk, Suffolk

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1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0 T-GDI 115BHP MHEV GT LINE S

2026
3,718 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£27,587

Exchange and Mart

West Sussex, West Sussex

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Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£24,995

Super price

You save £3,005

GU1 1RU Surrey, Surrey

148 g CO2/km comb. - 150 HP (110 kW) - 5.8 Mpg

Carwow Leasing

2026

(2026) Kia K4 114 HP

£25,995

Fair price

Estimated price £25,641

BN457ED

129 g CO2/km comb. - 114 HP (83 kW) - 5.7 Mpg

Carwow Leasing

2026

(2026) Kia K4 GT-Line S 179 HP

£28,995

Good price

You save £2,605

ST163UF Stafford, Staffordshire

152 g CO2/km comb. - 179 HP (131 kW) - 6.6 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£26,890

Fair price

You save £1,010

E12 5LH Greater London, London

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

1 / 4

Used (2026) Kia K4 GT-Line S 115 HP | Good price

1.0 T-GDi MHEV GT-Line S DCT Euro

2026
5,000 miles
Trim level: GT-Line S
1.0L Petrol
Hatchback
Automatic
115 HP (84 kW)
5.6 mpg
Details

Good price

£27,450

Exchange and Mart

Wiltshire, Wiltshire

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1 / 4

Used (2026) Kia K4 GT-Line 147 HP | Good price

1.6T-GDi 150 GT-Line 5dr DCT

2026
1,536 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
43.5 mpg
Details

Good price

£25,498

Dealer

CW9 5GG Northwich, Cheshire

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1 / 4

Used (2026) Kia K4 GT-Line S 177 HP | Super price

1.6T-GDi 180 GT-Line S 5dr DCT

2026
6,000 miles
Trim level: GT-Line S
1.6L Petrol
Hatchback
Automatic
177 HP (130 kW)
6.8 mpg
Details

Super price

£28,695

Buyacar

Delivered to you

View the car

1 / 4

New (2026) Kia K4 113 HP | Super price

1.0T-GDi 115 48V Pure 5dr DCT

2026
10 miles
1.0L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 129 g CO2/km comb.
5.6 mpg
Details

Super price

£23,998

Dealer

EH6 7LQ Edinburgh, Edinburgh

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1 / 4

Used (2026) Kia K4 GT-Line 147 HP | Good price

1.6T-GDi 150 GT-Line 5dr DCT

2026
4,450 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
147 HP (108 kW)
CO2 emissions: 148 g CO2/km comb.
43.5 mpg
Details

Good price

£25,998

Dealer

AB12 3HB Torry, Aberdeen

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Carwow Leasing

2025

(2025) Kia K4 GT-Line 114 HP

£28,995

Fair price

Estimated price £28,859

CB225DG

130 g CO2/km comb. - 114 HP (83 kW) - 5.7 Mpg

Carwow

2026

(2026) Kia K4 GT-Line S 179 HP

£28,995

Good price

You save £2,705

RG14 7HT Berkshire, Berkshire

152 g CO2/km comb. - 179 HP (131 kW) - 6.8 Mpg

Carwow

2026

(2026) Kia K4 GT-Line 150 HP

£26,820

Fair price

You save £1,080

CO49TF

148 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Sandicliffe.co.uk

2026

(2026) Ford Kuga ST-Line 180 HP

£24,346

Super price

You save £3,654

LE11 5HN Leicestershire, Leicestershire

123 g CO2/km comb. - 180 HP (132 kW) - 80.7 Mpg

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