2018 Audi A5 Cabriolet prices

There are 22 used 2018 Audi A5 Cabriolet cars for sale from UK dealers on AskCar, as of 6 November 2026. Typical asking price £13,800 (the median: half cost less, half cost more). The cheapest is £10,000. The middle half are priced between £12,000 and £15,900. Median mileage: about 52,000 miles.

Dealers lowered the asking price on more than a third of 2018 Audi A5 Cabriolet cars: 10 of the 22 in the 14 days to 6 November 2026.

2018 Audi A5 Cabriolet prices by trim

TrimTypical asking price, 2018 cars
S Line£13,600

Typical asking prices are of 2018 Audi A5 Cabriolet cars for sale on 6 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Audi A5 Cabriolet against other years

A 2017 Audi A5 Cabriolet car has a typical asking price of £13,300 and a 2019 one £17,000, as of 6 November 2026.

AskCar lists 220 used Audi A5 Cabriolet across the UK, from 194 dealerships.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Audi A5 Cabriolet cars for sale now, page 1 of 2

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 21 cars listed here meet these rules. Page 2 lists every other 2018 Audi A5 Cabriolet car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 210 priced Audi A5 Cabriolet adverts on AskCar as of 6 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Audi A5 Cabriolet.

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 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Best value 2018 Audi A5 Cabriolet: priced furthest below the AskCar estimate

These 10 are priced 3% to 23% under their AskCar estimate. Their asking prices run from £10,000 to £15,599.

Cheapest 2018 Audi A5 Cabriolet: the lowest asking prices

These 10 are priced £10,000 to £13,100. They have covered 44,069 to 119,996 miles.

Lowest-mileage 2018 Audi A5 Cabriolet

These 10 have covered 28,000 to 47,700 miles. Their asking prices run from £13,100 to £20,899.

Recently reduced 2018 Audi A5 Cabriolet: the biggest price reductions in the 14 days to 6 November 2026

The dealer lowered the asking price on each of these 9 in the 14 days to 6 November 2026. Their reductions since AskCar first saw them run from £500 to £2,300.

Newly advertised 2018 Audi A5 Cabriolet: first seen by AskCar in the 7 days to 6 November 2026

This car is the most recently advertised.

Audi A5 Cabriolet by gearbox, fuel and body

Audi A5 Cabriolet prices by year

Audi A5 Cabriolet by trim

Audi A5 Cabriolet by price

Audi A5 Cabriolet near you

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