2017 Vauxhall Astra GTC 1.6 CDTi ecoFLEX SRI

Price: £3,485. Fair price: £122 (3%) under the AskCar estimate of £3,607, our expected asking price for this car from its model, age, mileage and specification, drawing on 233 priced Vauxhall Astra GTC adverts on AskCar as of 7 November 2026.

AskCar lists 254 used Vauxhall Astra GTC from 205 UK dealerships, as of 7 November 2026.

Overview

  • Make: Vauxhall
  • Model: Astra GTC
  • Trim: SRI
  • Version: 1.6 CDTi ecoFLEX SRI Manual FWD Euro 6 (s/s) 3dr (108 bhp)
  • Year: 2017
  • Mileage: 101,000 miles
  • Fuel: Diesel
  • Body: Coupe, 3 doors, 5 seats
  • Engine: 1.6 litres, 108 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 111 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 101,000 miles on the clock, this 2017 Vauxhall Astra GTC Sri has done roughly 33,000 more miles than a typical 2017 Vauxhall Astra GTC. Its asking price of £3,485 is £122 below the AskCar estimate of £3,607. The AskCar estimate uses 233 UK dealer adverts for the Vauxhall Astra GTC, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 103 days ago, the asking price has dropped by £515. Its advertised mileage matches the government's MOT record. It is advertised by Harris Cars in Southampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £122 (3%) under the AskCar estimate of £3,607.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 233 priced Vauxhall Astra GTC adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 2017 Vauxhall Astra GTC has been on sale for at least 103 days.

Price history

AskCar first saw this advert on 27 July 2026 at £4,000. Its asking price is now £3,485, £515 less. The latest price cut was seen on 26 August 2026.

Price changes recorded:

  • 27 July 2026: £4,000
  • 26 August 2026: £3,485

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 1 March 2027.

It has had 9 MOTs. The latest, on 20 February 2026, passed.

Advisories at the latest test: windscreen damaged but not adversely affecting driver's view; tpms light on; nearside front tyre worn close to legal limit/worn on edge 2.5mm-3mm. wearing on edges (235/50/18); and 5 more.

Mileage at that test: 97,445 miles, which matches the advertised 101,000 miles.

Advertised mileage is about 33,000 miles higher than the median mileage of a 2017 Vauxhall Astra GTC on AskCar.

Similar cars

1 other 2017 Vauxhall Astra GTC SRI 1.6 diesel manual coupe is for sale at UK dealers, as of 7 November 2026.

The closest to this car in mileage:

  • 2017 Vauxhall Astra GTC SRI, 1.6 diesel coupe, black. Mileage: 68,000 miles. Price: £4,999, £1,514 more than this car. Dealer: Affordable Car Centre in Bedford. AskCar page: https://askcar.co.uk/car/vauxhall-astra-gtc-2017-14e702fc3d08

Browse all Vauxhall Astra GTC cars for sale · 2017 Vauxhall Astra GTC price guide

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Photos

23 photos of this car are on its AskCar page.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.