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Kia K4 (GT-Line) • 57 cars with analysis

Market overview: Market price for Kia K4 (GT-Line): The average price is £24,925, ranging from £22,980 to £27,045. Among 57 cars with the GT-Line trim, AutoUncle identified 19 good deals listed below market value.

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Carwow

GT-Line

(2026) Kia K4 GT-Line 150 HP

£24,311

Fair price

You save £489

S81 7AE Nottinghamshire, Nottinghamshire

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 177 HP

£25,553

Good price

You save £1,947

DN31 1SF North East Lincolnshire, Lincolnshire

152 g CO2/km comb. - 177 HP (130 kW) - 6.4 Mpg

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£22,848

Super price

You save £3,452

S71 1EZ South Yorkshire, South Yorkshire

130 g CO2/km comb. - 114 HP (83 kW) - 5.6 Mpg

Carwow

GT-Line

(2026) Kia K4 GT-Line 150 HP

£25,404

Fair price

Estimated price £25,039

E12 5AW Greater London, London

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

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Good price

Fair price

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Expensive

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1 / 4

New (2026) Kia K4 GT-Line 114 HP | Good price

2026 GT-Line 1.0T-GDi 115 48V

2026
1,200 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Good price

£24,388

£24,578

EH288TH Newbridge, Edinburgh

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1 / 4

Used (2026) Kia K4 GT-Line 114 HP | Super price

2026 GT-Line 1.0T-GDi 115 48V

2026
3,000 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Super price

£24,069

£24,151

EH288TH Newbridge, Edinburgh

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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

Mar 2026
1,367 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

Good price

£24,231

£24,797

BD1 4AJ West Yorkshire, West Yorkshire

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-1%

1 / 4

Used (2026) Kia K4 GT-Line 114 HP | Super price

2026 GT-Line 1.0T-GDi 115 48V

2026
1,975 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Super price

£23,997

£24,297

BD1 4AJ West Yorkshire, West Yorkshire

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Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£25,500

Fair price

Estimated price £25,245

CV64DG

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 115 HP

£24,231

Good price

You save £2,269

BD1 4AJ West Yorkshire, West Yorkshire

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

Carwow Leasing

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,995

Fair price

You save £205

S601TU

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,388

Good price

You save £2,712

EH288TH Newbridge, Edinburgh

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

-12%

1 / 4

New (2026) Kia K4 GT-Line 114 HP | Super price

2026 GT-Line 1.0T-GDi 115 48V 5dr

2026
1,189 miles
Trim level: GT-Line
1.2L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Super price

£22,848

£25,990

S711HH

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-10%

1 / 4

New (2026) Kia K4 GT-Line 114 HP | Super price

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

2026
1,189 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.6 mpg
Details

Super price

£22,848

£25,490

S71 1EZ South Yorkshire, South Yorkshire

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-2%

1 / 4

Used (2026) Kia K4 GT-Line 150 HP | Good price

2026 GT-Line 1.6T-GDi 150 DCT

2026
6,324 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 148 g CO2/km comb.
6.4 mpg
Details

Good price

£22,995

£23,641

EH288TH Newbridge, Edinburgh

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-16%

1 / 4

Used (2025) Kia K4 GT-Line 150 HP | Good price

1.6T-GDi 150 GT-Line 5dr DCT

Jan 2025
6,324 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 148 g CO2/km comb.
44 mpg
Details

Good price

£22,995

£27,500

Lonehea Edinburgh, Edinburgh

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1 / 4

New (2026) Kia K4 GT-Line 114 HP | Good price

2026 GT-Line 1.0T-GDi 115 48V

2026
9 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Good price

£25,500

CV6 4DG West Midlands, West Midlands

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1 / 4

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

2026 GT-Line 1.6T-GDi 150 5dr

2026
1,899 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
177 HP (130 kW)
CO2 emissions: 152 g CO2/km comb.
6.4 mpg
Details

Good price

£25,553

DN31 1SF North East Lincolnshire, Lincolnshire

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Verified Dealers

Carwow

GT-Line

(2026) Kia K4 GT-Line 150 HP

£23,395

Fair price

You save £1,105

PR25PD Preston, Lancashire

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 150 HP

£22,995

Good price

You save £1,605

EH288TH Newbridge, Edinburgh

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

Carwow Leasing

GT-Line

(2025) Kia K4 GT-Line 114 HP

£28,795

Fair price

Estimated price £27,606

CB225DG

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,069

Super price

You save £2,831

EH288TH Newbridge, Edinburgh

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

1 / 4

New (2026) Kia K4 GT-Line 114 HP | Good price

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

2026
11 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Good price

£25,937

£25,995

HD16AP

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-7%

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

£23,998

£25,998

Dealer

AB12 3HB Torry, Aberdeen

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-13%

1 / 4

New (2026) Kia K4 GT-Line 113 HP | Good price

Mar 2026
1,189 miles
Trim level: GT-Line
1.2L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
50 mpg
Details

Good price

£21,990

£25,490

Dealer

S71 1ET South Yorkshire, South Yorkshire

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-8%

1 / 1

Used (2026) Kia K4 GT-Line 113 HP | Good price

Hatchback (2026/26)1.0T-GDi 115

2026
3,375 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
49.6 mpg
Details

Good price

£24,909

£27,358

Parkers.co.uk

LE12 Loughborough, Leicestershire

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-9%

1 / 1

Used (2026) Kia K4 GT-Line 113 HP | Good price

Hatchback (2026/26)1.0T-GDi 115

2026
3,555 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
49.6 mpg
Details

Good price

£24,876

£27,490

Parkers.co.uk

LE12 Loughborough, Leicestershire

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-3%

1 / 3

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

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

2026
2,101 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

Good price

£24,291

£25,182

Motors.co.uk

LN11 0HQ Lincolnshire, Lincolnshire

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-3%

1 / 4

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

1.6T-GDi 150 GT-Line 5dr DCT

2026
1,833 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
Details

Super price

£25,252

£26,047

Exchange and Mart

BH23 Avon, Gloucestershire

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-4%

1 / 3

Used (2026) Kia K4 GT-Line 113 HP | Good price

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

2026
3,500 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.6 mpg
Details

Good price

£23,850

£24,990

Motors.co.uk

PE30 4NB Norfolk, Norfolk

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-2%

1 / 4

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

1.6T-GDi 150 GT-Line 5dr DCT

2026
7,975 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
Details

Super price

£24,592

£25,236

Exchange and Mart

Buckinghamshire, Buckinghamshire

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-13%

1 / 4

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

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

2026
6,500 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

Good price

£24,300

£27,990

Motors.co.uk

LE10 0NF Leicestershire, Leicestershire

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Carwow Leasing

GT-Line

(2026) Kia K4 GT-Line 114 HP

£25,937

Good price

You save £1,563

HD16AP

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£22,848

Super price

You save £2,652

S711HH

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 150 HP

£25,801

Fair price

Estimated price £24,903

RM6 6EE Greater London, London

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,995

Fair price

You save £105

B736SP

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

-9%

1 / 1

Used (2026) Kia K4 GT-Line 113 HP | Good price

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

2026
10,735 miles
Trim level: GT-Line
1.0L Petrol
Hatchback
Automatic
113 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
49.6 mpg
Details

Good price

£22,999

£25,499

Parkers.co.uk

IP24 1HT Norfolk, Norfolk

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-4%

1 / 4

Used (2026) Kia K4 GT-Line 150 HP | Fair price

1.6T-GDi 150 GT-Line 5dr DCT

2026
5,429 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 148 g CO2/km comb.
6.4 mpg
Details

Fair price

£24,829

£25,928

CM14 4NS Essex, Essex

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-5%

1 / 4

New (2026) Kia K4 GT-Line 114 HP | Fair price

2026 GT-Line 1.0T-GDi 115 48V

2026
1,200 miles
Trim level: GT-Line
1.2L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
50 mpg
Details

Fair price

£24,448

£25,990

Lonehea Edinburgh, Edinburgh

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New

1 / 4

Used (2026) Kia K4 GT-Line 114 HP | Fair price

2026 GT-Line 1.0T-GDi 115 48V

2026
3,000 miles
Trim level: GT-Line
1.2L Petrol
Hatchback
Automatic
114 HP (83 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Fair price

£24,129

£24,155

EH288TH

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-4%

1 / 4

Used (2026) Kia K4 GT-Line 150 HP | Fair price

2026 GT-Line 1.6T-GDi 150 5dr

2026
7,299 miles
Trim level: GT-Line
1.6L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 148 g CO2/km comb.
6.4 mpg
Details

Fair price

£23,395

£24,465

PR25PD Preston, Lancashire

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Availability verified

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Verified Dealers

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£25,500

Good price

You save £1,700

CV6 4DG West Midlands, West Midlands

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

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£23,997

Fair price

You save £1,103

Canal West Yorkshire, West Yorkshire

130 g CO2/km comb. - 114 HP (83 kW) - 50.0 Mpg

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,448

Fair price

You save £752

Lonehea Edinburgh, Edinburgh

130 g CO2/km comb. - 114 HP (83 kW) - 50.0 Mpg

Carwow

GT-Line

(2026) Kia K4 GT-Line 114 HP

£24,129

Fair price

You save £871

EH288TH

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

Showing 1 - 25 of 59 results

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