2018 Vauxhall Astra GTC prices

There are 8 used 2018 Vauxhall Astra GTC cars for sale from UK dealers on AskCar, as of 9 November 2026. The cheapest is £3,999.

AskCar lists 252 used Vauxhall Astra GTC across the UK, from 202 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 Vauxhall Astra GTC cars for sale now

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage 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 7 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 231 priced Vauxhall Astra GTC adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Vauxhall Astra GTC.

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 Vauxhall Astra GTC: priced furthest below the AskCar estimate

Their asking prices run from £3,999 to £14,990.

Cheapest 2018 Vauxhall Astra GTC: the lowest asking prices

These 7 are priced £3,999 to £14,990. They have covered 29,577 to 101,120 miles.

Lowest-mileage 2018 Vauxhall Astra GTC

These 7 have covered 29,577 to 101,120 miles. Their asking prices run from £3,999 to £14,990.

Newly advertised 2018 Vauxhall Astra GTC: first seen by AskCar in the 7 days to 9 November 2026

This car is the most recently advertised.

Vauxhall Astra GTC by gearbox, fuel and body

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