2018 Vauxhall Astra SRI prices

There are 61 used 2018 Vauxhall Astra SRI cars for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £6,600 (the median: half cost less, half cost more). The cheapest is £3,250. The middle half are priced between £5,300 and £7,500. Median mileage: about 57,000 miles.

Dealers lowered the asking price on more than one in five of 2018 Vauxhall Astra SRI cars: 15 of the 61 in the 14 days to 8 November 2026.

2018 Vauxhall Astra SRI prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.4 petrol£6,600Too few for saleToo few for saleToo few for sale£5,200

Only 10 of the 2018 Vauxhall Astra SRI cars for sale have the 1.6 petrol engine, too few to give a typical asking price.

Only 6 of the 2018 Vauxhall Astra SRI cars for sale have the 1.0 petrol engine, too few to give a typical asking price.

Typical asking prices are of 2018 Vauxhall Astra SRI cars for sale on 8 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Vauxhall Astra SRI against other years

A 2017 Vauxhall Astra SRI car has a typical asking price of £6,000 and a 2019 one £7,400, as of 8 November 2026.

AskCar lists 3,991 used Vauxhall Astra across the UK, from 1,891 dealerships.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Vauxhall Astra SRI 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. 54 of the 56 cars listed here meet these rules. Page 2 lists every other 2018 Vauxhall Astra SRI 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 3,756 priced Vauxhall Astra adverts on AskCar as of 8 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Vauxhall Astra SRI.

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

Best value 2018 Vauxhall Astra SRI: priced furthest below the AskCar estimate

These 10 are priced 2% to 19% under their AskCar estimate. Their asking prices run from £3,250 to £8,000.

Cheapest 2018 Vauxhall Astra SRI: the lowest asking prices

These 10 are priced £3,250 to £4,581. They have covered 66,000 to 122,500 miles.

Lowest-mileage 2018 Vauxhall Astra SRI

These 10 have covered 13,442 to 39,000 miles. Their asking prices run from £6,995 to £10,990.

Recently reduced 2018 Vauxhall Astra SRI: the biggest price reductions in the 14 days to 8 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 8 November 2026. Their reductions since AskCar first saw them run from £395 to £1,000.

Newly advertised 2018 Vauxhall Astra SRI: first seen by AskCar in the 7 days to 8 November 2026

These 9 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Vauxhall Astra by gearbox, fuel and body

Vauxhall Astra prices by year

Vauxhall Astra by trim

2018 Vauxhall Astra by price

2018 Vauxhall Astra by trim

Vauxhall Astra by price

Vauxhall Astra near you

More Vauxhall

Everything