2018 Kia Sportage GT Line prices

There are 124 used 2018 Kia Sportage GT Line cars for sale from UK dealers on AskCar, as of 12 November 2026. Typical asking price £10,000 (the median: half cost less, half cost more). The cheapest is £5,995. The middle half are priced between £9,000 and £11,400. Median mileage: about 67,000 miles.

Dealers lowered the asking price on more than a quarter of 2018 Kia Sportage GT Line cars: 41 of the 124 in the 14 days to 12 November 2026.

2018 Kia Sportage GT Line prices by engine and mileage

A 2018 Kia Sportage GT Line 1.6 petrol car typically costs £10,000, against £9,200 for the 1.7 diesel, as of 12 November 2026.

A 2018 Kia Sportage GT Line 1.6 petrol car with 40,000 to 60,000 miles typically costs £11,000, against £9,600 with 60,000 miles or more.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.6 petrol£10,000Too few for saleToo few for sale£11,000£9,600
1.7 diesel£9,200Too few for saleToo few for saleToo few for sale£9,000

Only 7 of the 2018 Kia Sportage GT Line cars for sale have the 2.0 diesel engine, too few to give a typical asking price.

Typical asking prices are of 2018 Kia Sportage GT Line cars for sale on 12 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Kia Sportage GT Line against other years

A 2017 Kia Sportage GT Line car has a typical asking price of £8,800 and a 2019 one £11,300, as of 12 November 2026.

AskCar lists 9,739 used Kia Sportage across the UK, from 2,745 dealerships.

As of 12 November 2026, AskCar lists 596,362 cars and vans from 12,840 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Kia Sportage GT Line cars for sale now, page 1 of 3

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 118 of the 120 cars listed here meet these rules. Pages 2 to 3 list every other 2018 Kia Sportage GT Line car, cheapest first, including the 2 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 9,588 priced Kia Sportage adverts on AskCar as of 12 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Kia Sportage GT Line.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 4 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2018 Kia Sportage GT Line: priced furthest below the AskCar estimate

These 10 are priced 7% to 22% under their AskCar estimate. Their asking prices run from £6,895 to £8,995.

Cheapest 2018 Kia Sportage GT Line: the lowest asking prices

These 10 are priced £5,995 to £6,995. They have covered 82,036 to 133,000 miles.

Lowest-mileage 2018 Kia Sportage GT Line

These 10 have covered 20,800 to 39,700 miles. Their asking prices run from £11,895 to £15,995.

Recently reduced 2018 Kia Sportage GT Line: the biggest price reductions in the 14 days to 12 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 12 November 2026. Their reductions since AskCar first saw them run from £1,000 to £2,549.

Newly advertised 2018 Kia Sportage GT Line: first seen by AskCar in the 7 days to 12 November 2026

These 10 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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