2021 BMW X3 2.0 30e Xline

Overview

• Make: BMW
• Model: X3
• Trim: Xline
• Version: 2.0 12kWh 30e Xline Auto 4WD Euro 6 (s/s) 5dr (288 bhp)
• Year: 2021
• Mileage: 56,500 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 288 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 47 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 56,500 miles, this 2021 BMW X3 Xline has covered about 9,500 more miles than other 2021 BMW X3 cars. The AskCar estimate for this car is £21,019. It is priced at £19,990, which is £1,029 below that estimate. The AskCar estimate draws on 3,046 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. Its advertised mileage matches the government's MOT record. It is advertised by BSB Automotive in Dartford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,029 (4%) under the AskCar estimate of £21,019.

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 3,046 priced BMW X3 adverts across different ages and specifications, as of 9 November 2026.

A 2021 BMW X3 with the 2.0 plug-in hybrid engine is typically advertised at £24,500: the median of the 177 for sale on AskCar, as of 9 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised today. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 148 of the 317 first advertised between 13 July 2026 and 6 October 2026.

Price history

AskCar first saw this advert on 9 November 2026 at £19,990. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 22 September 2027.

It has had 3 MOTs. The latest, on 21 September 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 56,085 miles, which matches the advertised 56,500 miles.

Advertised mileage is about 9,500 miles higher than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

9 other 2021 BMW X3 Xline 2.0 plug-in hybrid automatic SUVs are for sale at UK dealers, from £17,699 to £25,450, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 Xline, 2.0 plug-in hybrid SUV, black. Mileage: 56,373 miles. Price: £19,999, the same price as this car. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-0ca59714fa6a
• 2021 BMW X3 Xline, 2.0 plug-in hybrid SUV, grey. Mileage: 49,631 miles. Price: £22,495, £2,505 more than this car. Dealer: Group 1 BMW Lincoln in Lincoln. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-328bcbdfc7de
• 2021 BMW X3 Xline, 2.0 plug-in hybrid SUV, black. Mileage: 63,980 miles. Price: £18,750, £1,240 less than this car. Dealer: German Autocentre in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-7b8cb2a86dbb

• The nearest: 2021 BMW X3 Xline, 2.0 plug-in hybrid SUV, black, 18 miles from this car. Mileage: 25,000 miles. Price: £25,450, £5,460 more than this car. Dealer: Westleigh Prestige in Wickford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-a304809bfa03