2025 BYD Seal U 1.5 Boost

Overview

• Make: BYD
• Model: Seal U
• Trim: Boost
• Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
• Year: 2025
• Mileage: 5,604 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 1.5 litres, 214 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal U Boost has covered 5,604 miles, around 2,500 fewer miles than is typical for its age. The AskCar estimate for this car is £24,703. It is priced at £23,499, which is £1,204 below that estimate. The AskCar estimate uses UK dealer asking prices, including 853 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 49 days ago, and its asking price has since fallen by £1,200. You can find this car at cinch in Canterbury. 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: £1,204 (4%) under the AskCar estimate of £24,703.

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 853 priced BYD Seal U adverts across different ages and specifications, as of 4 November 2026.

A 2025 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £24,600: the median of the 497 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2025 BYD Seal U has been on sale for at least 49 days.

Price history

AskCar first saw this advert on 16 September 2026 at £24,699. Its asking price is now £23,499, £1,200 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 16 September 2026: £24,699
• 17 September 2026: £24,599
• 23 September 2026: £24,199
• 25 September 2026: £24,099
• 26 September 2026: £23,999
• 1 October 2026: £23,799
• 2 October 2026: £23,899
• 24 October 2026: £23,699
• 29 October 2026: £23,499

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,500 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

102 other 2025 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,440 to £33,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 5,887 miles. Price: £23,623, £124 more than this car. Dealer: Stoneacre in Grimsby. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4d839c64174c
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 5,193 miles. Price: £24,695, £1,196 more than this car. Dealer: Stoneacre in Wigan. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e05fd193115d
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,025 miles. Price: £24,699, £1,200 more than this car. Dealer: SG Petch Durham in Durham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-5c83ee1ee983

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 7,429 miles. Price: £23,600, £101 more than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-d9f08de2e254