2018 Porsche 911 4.0 991 GT3
Version: 4.0 991 GT3 PDK RWD Euro 6 2dr (492 bhp)
Price: £134,995. Fair price: £291 (under 1%) under the AskCar estimate of £135,286, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,940 priced Porsche 911 adverts on AskCar as of 29 October 2026.
AskCar lists 2,426 used Porsche 911 from 637 UK dealerships, as of 29 October 2026.
Overview
- Make
- Porsche
- Model
- 911
- Trim
- 991 GT3
- Version
- 4.0 991 GT3 PDK RWD Euro 6 2dr (492 bhp)
- Mileage
- 27,146 miles
- Year
- 2018
- Fuel type
- Petrol
- Body type
- Coupe
- Engine
- 4.0 L
- Gearbox
- Automatic
- Power
- 492 bhp
- Seats
- 2
- CO2
- 288 g/km
- Colour
- Grey
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Gearbox version
- PDK
- Engine badge
- 991 GT3
- Emissions standard
- Euro 6
About this car
With 27,146 miles on the clock, this 2018 Porsche 911 991 Gt3 has done roughly 6,500 more miles than a typical 2018 Porsche 911. The AskCar estimate for this car is £135,286. It is priced at £134,995, which is £291 below that estimate. The AskCar estimate draws on 1,940 Porsche 911 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 1 day ago. MOT records show an expiry date of 13 January 2027, and the latest recorded mileage is consistent with the advert. The seller is JCT600 Porsche Centre Newcastle, based in Newcastle Upon Tyne.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 28 October 2026, 1 day ago.
| Date observed | Asking price |
|---|---|
| 28 October 2026 | £134,995 |
| 29 October 2026 | £134,995 |
Price and mileage comparison
Fair price: £291 (under 1%) under the AskCar estimate of £135,286.
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 1,940 priced Porsche 911 adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 6,500 miles higher than the median mileage of a 2018 Porsche 911 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 13 January 2027. 27,033 miles at the last test.
Other matching cars
3 other 2018 Porsche 911 991 GT3 automatic petrol cars are for sale at UK dealers from £134,949 to £143,500, as of 29 October 2026.
- 2018 Porsche 911. Price: £134,949. Mileage: 20,000 miles. Dealer: DMB Collection Thirsk in Thirsk. AskCar page: https://askcar.co.uk/car/porsche-911-2018-1198047cd941
- 2018 Porsche 911. Price: £134,990. Mileage: 26,607 miles. Dealer: Baytree Cars in Derby. AskCar page: https://askcar.co.uk/car/porsche-911-2018-7cd52e00708d
- 2018 Porsche 911. Price: £143,500. Mileage: 17,974 miles. Dealer: JCT600 Approved Leeds in Leeds. AskCar page: https://askcar.co.uk/car/porsche-911-2018-ccb6e0ae0506
The 3 matching cars have covered 17,974 to 26,607 miles, compared with 27,146 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Porsche 911 cars for sale · 2018 Porsche 911 price guide
More like this
Photos
42 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.