2018 Porsche 911 3.0 991 4 GTS

Overview

• Make: Porsche
• Model: 911
• Trim: 991 4 GTS
• Version: 3.0 T 991 4 GTS PDK 4WD Euro 6 (s/s) 2dr Targa (444 bhp)
• Year: 2018
• Mileage: 24,250 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 444 bhp
• Gearbox: Automatic (PDK)
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 196 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Porsche 911 991 4 Gts is advertised with 24,250 miles, approximately 3,400 above the typical mileage for its age. The dealer is asking £89,000, which is £5,174 below the AskCar estimate of £94,174. To work out the AskCar estimate, we analyse UK dealer adverts for 1,926 Porsche 911 cars across different ages and specifications. The asking price is now £995 lower than when we first recorded the advert 129 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Whitethor Cars, based in Coalville. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £5,174 (5%) under the AskCar estimate of £94,174.

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 1,926 priced Porsche 911 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Porsche 911 with the 3.0 petrol engine is typically advertised at £79,500: the median of the 41 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Porsche 911 has been on sale for at least 129 days.

Price history

AskCar first saw this advert on 26 June 2026 at £89,995. Its asking price is now £89,000, £995 less. The latest price cut was seen on 25 September 2026.

Price changes recorded:

• 27 June 2026: £89,995
• 25 September 2026: £89,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 22 April 2027.

It failed its MOT on 21 April 2026 (nearside rear tyre has ply or cords exposed; offside rear tyre has ply or cords exposed) and passed 2 days later, on 23 April 2026.

There were no advisories at the latest test.

Mileage at that test: 23,328 miles, which matches the advertised 24,250 miles.

Advertised mileage is about 3,400 miles higher than the median mileage of a 2018 Porsche 911 on AskCar.

Similar cars

2 other 2018 Porsche 911 991 4 GTS 3.0 petrol automatic convertibles are for sale at UK dealers, from £79,991 to £84,990, as of 2 November 2026.

The 2 closest to this car in mileage:

• 2018 Porsche 911 991 4 GTS, 3.0 petrol convertible, grey. Mileage: 36,082 miles. Price: £84,990, £4,010 less than this car. Dealer: Per4mance Cars in Macclesfield. AskCar page: https://askcar.co.uk/car/porsche-911-2018-ea738490397e
• 2018 Porsche 911 991 4 GTS, 3.0 petrol convertible, red. Mileage: 59,911 miles. Price: £79,991, £9,009 less than this car. Dealer: Dick Lovett Porsche Centre Tewkesbury in Tewkesbury. AskCar page: https://askcar.co.uk/car/porsche-911-2018-f27c42ed35c8