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: 5,012 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: Blue
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal U Boost has covered 5,012 miles, around 3,100 fewer miles than is typical for its age. Its asking price of £24,102 is £753 below the AskCar estimate of £24,855. The AskCar estimate uses 853 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 21 days ago, and its asking price has since fallen by £521. The seller is Vertu BYD Morpeth, based in Morpeth. 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: £753 (3%) under the AskCar estimate of £24,855.

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 21 days.

Price history

AskCar first saw this advert on 14 October 2026 at £24,623. Its asking price is now £24,102, £521 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 14 October 2026: £24,623
• 17 October 2026: £24,315
• 3 November 2026: £24,102

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,100 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, white. Mileage: 5,020 miles. Price: £24,490, £388 more than this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-ed5e33f5ac30
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 5,045 miles. Price: £25,512, £1,410 more than this car. Dealer: Vertu BYD Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-2c98bc0032a2
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,836 miles. Price: £24,498, £396 more than this car. Dealer: Arnold Clark Linwood Motorstore / BYD in Linwood. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-73dc8f2e79e3

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 8,410 miles. Price: £23,772, £330 less than this car. Dealer: Vertu BYD Morpeth in Morpeth. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6587f99f2752