2018 Jaguar XJ 3.0 d V6 Portfolio

Overview

• Make: Jaguar
• Model: XJ
• Trim: Portfolio
• Version: 3.0 d V6 Portfolio Auto RWD Euro 6 (s/s) 4dr (296 bhp)
• Year: 2018
• Mileage: 52,704 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 296 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 155 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 52,704 miles on the clock, this 2018 Jaguar XJ Portfolio has done roughly 8,500 fewer miles than a typical 2018 Jaguar XJ. The AskCar estimate for this car is £19,907. It is priced at £19,980, which is £73 above that estimate. The AskCar estimate draws on 262 Jaguar XJ adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 155 days ago. Its asking price has since fallen by £1,510. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by BUY & Go Cars in Cardiff. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £73 (under 1%) over the AskCar estimate of £19,907.

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 262 priced Jaguar XJ adverts across different ages and specifications, as of 4 November 2026.

A 2018 Jaguar XJ with the 3.0 diesel engine is typically advertised at £18,900: the median of the 13 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Jaguar XJ has been on sale for at least 155 days.

Price history

AskCar first saw this advert on 2 June 2026 at £21,490. Its asking price is now £19,980, £1,510 less. The latest price cut was seen on 9 September 2026.

Price changes recorded:

• 2 June 2026: £21,490
• 16 June 2026: £20,990
• 11 July 2026: £20,940
• 14 July 2026: £20,890
• 19 July 2026: £20,690
• 21 July 2026: £20,640
• 26 July 2026: £20,490
• 28 August 2026: £20,270
• 9 September 2026: £19,980

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 3 February 2027.

It has had 6 MOTs. The latest, on 28 January 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened; rear sub-frame corroded but not seriously weakened support bracket; nearside front tyre slightly damaged; and 1 more.

Mileage at that test: 52,266 miles, which matches the advertised 52,704 miles.

Advertised mileage is about 8,500 miles lower than the median mileage of a 2018 Jaguar XJ on AskCar.

Similar cars

6 other 2018 Jaguar XJ Portfolio 3.0 diesel automatic saloons are for sale at UK dealers, from £8,995 to £21,999, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Jaguar XJ Portfolio, 3.0 diesel saloon, black. Mileage: 42,311 miles. Price: £20,995, £1,015 more than this car. Dealer: Stream Cars in Bagshot. AskCar page: https://askcar.co.uk/car/jaguar-xj-2018-cc91654da3a1
• 2018 Jaguar XJ Portfolio, 3.0 diesel saloon, grey. Mileage: 39,500 miles. Price: £20,160, £180 more than this car. Dealer: Evans Halshaw MG Grantham in Grantham. AskCar page: https://askcar.co.uk/car/jaguar-xj-2018-bce3300b565c
• 2018 Jaguar XJ Portfolio, 3.0 diesel saloon, black. Mileage: 38,748 miles. Price: £21,999, £2,019 more than this car. Dealer: cinch in Ashford. AskCar page: https://askcar.co.uk/car/jaguar-xj-2018-1d5d94b2c9e2

• The nearest: 2018 Jaguar XJ Portfolio, 3.0 diesel saloon, red, under a mile from this car. Mileage: 37,389 miles. Price: £21,400, £1,420 more than this car. Dealer: Sytner Select Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/jaguar-xj-2018-77490f02a5f5