2018 Porsche 911 4.0 991 GT3 RS
Price: £184,990. Above the going rate: £15,493 (9%) over the AskCar estimate of £169,497, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,971 priced Porsche 911 adverts on AskCar as of 8 November 2026.
AskCar lists 2,458 used Porsche 911 from 618 UK dealerships, as of 8 November 2026.
Overview
- Make: Porsche
- Model: 911
- Trim: 991 GT3 RS
- Version: 4.0 991 GT3 RS PDK RWD Euro 6 2dr (512 bhp)
- Year: 2018
- Mileage: 16,750 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 4.0 litres, 512 bhp
- Gearbox: Automatic (PDK)
- Drive: Rear-wheel drive
- Colour: Green
- CO2: 303 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 16,750 miles on the clock, this 2018 Porsche 911 991 Gt3 RS has done roughly 5,000 fewer miles than a typical 2018 Porsche 911. The dealer is asking £184,990, which is £15,493 above the AskCar estimate of £169,497. To work out the AskCar estimate, we analyse UK dealer adverts for 1,971 Porsche 911 cars across different ages and specifications. We first saw this car advertised 87 days ago. Its asking price has since fallen by £5,000. The government's MOT record matches its advertised mileage. It is for sale at Vvs Uk in Cranbrook. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Above the going rate: £15,493 (9%) over the AskCar estimate of £169,497.
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 1,971 priced Porsche 911 adverts across different ages and specifications, as of 8 November 2026.
A 2018 Porsche 911 with the 4.0 petrol engine is typically advertised at £136,000: the median of the 10 for sale on AskCar, as of 8 November 2026.
Time on sale
This 2018 Porsche 911 has been on sale for at least 87 days.
Price history
AskCar first saw this advert on 13 August 2026 at £189,990. Its asking price is now £184,990, £5,000 less. The latest price cut was seen on 11 October 2026.
Price changes recorded:
- 13 August 2026: £189,990
- 11 October 2026: £184,990
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 4 February 2027.
It has had 5 MOTs. The latest, on 5 February 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 14,967 miles, which matches the advertised 16,750 miles.
Advertised mileage is about 5,000 miles lower than the median mileage of a 2018 Porsche 911 on AskCar.
Browse all Porsche 911 cars for sale · 2018 Porsche 911 price guide
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Photos
52 photos of this car are on its AskCar page.
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.