2017 Porsche 911 3.8 991 Turbo S
Price: £118,980. Fair price: £5,575 (4%) under the AskCar estimate of £124,555, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,962 priced Porsche 911 adverts on AskCar as of 5 November 2026.
AskCar lists 2,460 used Porsche 911 from 619 UK dealerships, as of 5 November 2026.
Overview
- Make: Porsche
- Model: 911
- Trim: 991 Turbo S
- Version: 3.8 T 991 Turbo S PDK 4WD Euro 6 (s/s) 2dr (572 bhp)
- Year: 2017
- Mileage: 8,500 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 4 seats
- Engine: 3.8 litres, 572 bhp
- Gearbox: Automatic (PDK)
- Drive: Four-wheel drive
- Colour: Silver
- CO2: 212 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 8,500 miles on the clock, this 2017 Porsche 911 991 Turbo S has done roughly 25,400 fewer miles than a typical 2017 Porsche 911. Its asking price of £118,980 is £5,575 below the AskCar estimate of £124,555. The AskCar estimate draws on 1,962 Porsche 911 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 6 days ago. The seller is Tier One Automotive, based in Kings Langley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £5,575 (4%) under the AskCar estimate of £124,555.
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 1,962 priced Porsche 911 adverts across different ages and specifications, as of 5 November 2026.
Time on sale
AskCar first saw this 2017 Porsche 911 advertised 6 days ago. About half of 2017 Porsche 911 cars are gone from sale within a month of being advertised: 35 of the 66 first advertised between 11 July 2026 and 2 October 2026.
Price history
AskCar first saw this advert on 30 October 2026 at £118,980. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 25,400 miles lower than the median mileage of a 2017 Porsche 911 on AskCar.
Similar cars
2 other 2017 Porsche 911 991 Turbo S 3.8 petrol automatic coupes are for sale at UK dealers, from £111,995 to £114,950, as of 5 November 2026.
The 2 closest to this car in mileage:
- 2017 Porsche 911 991 Turbo S, 3.8 petrol coupe, silver. Mileage: 18,900 miles. Price: £111,995, £6,985 less than this car. Dealer: Clinkard in Southampton. AskCar page: https://askcar.co.uk/car/porsche-911-2017-4da70bdd28ef
- 2017 Porsche 911 991 Turbo S, 3.8 petrol coupe, silver. Mileage: 29,000 miles. Price: £114,950, £4,030 less than this car. Dealer: A C G Motors in Manchester. AskCar page: https://askcar.co.uk/car/porsche-911-2017-784df344ad37
Browse all Porsche 911 cars for sale · 2017 Porsche 911 price guide
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Photos
79 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.