2018 Infiniti Q50 prices

There are 8 used 2018 Infiniti Q50 cars for sale from UK dealers on AskCar, as of 9 November 2026. The cheapest is £6,495.

Dealers lowered the asking price on more than a third of 2018 Infiniti Q50 cars: 3 of the 8 in the 14 days to 9 November 2026.

AskCar lists 34 used Infiniti Q50 across the UK, from 30 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Infiniti Q50 cars for sale now

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. All 6 cars listed here meet these rules.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 32 priced Infiniti Q50 adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Infiniti Q50.

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 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2018 Infiniti Q50: priced furthest below the AskCar estimate

Their asking prices run from £6,495 to £12,990.

Cheapest 2018 Infiniti Q50: the lowest asking prices

These 6 are priced £6,495 to £12,990. They have covered 34,000 to 105,000 miles.

Lowest-mileage 2018 Infiniti Q50

These 6 have covered 34,000 to 105,000 miles. Their asking prices run from £6,495 to £12,990.

Recently reduced 2018 Infiniti Q50: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 3 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £300 to £500.

Newly advertised 2018 Infiniti Q50: first seen by AskCar in the 7 days to 9 November 2026

This car is the most recently advertised.

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