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: 3,119 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 is advertised with 3,119 miles, approximately 5,100 below the typical mileage for its age. Its asking price of £24,295 is £721 below the AskCar estimate of £25,016. The AskCar estimate draws on 829 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. The seller is Pentagon BYD Nottingham, based in Nottingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £721 (2%) under the AskCar estimate of £25,016.

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 829 priced BYD Seal U adverts across different ages and specifications, as of 7 November 2026.

A 2025 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £24,500: the median of the 476 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2025 BYD Seal U advertised today. About half of 2025 BYD Seal U cars are gone from sale within a month of being advertised: 622 of the 1,196 first advertised between 8 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £24,295. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 5,100 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

99 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 7 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 3,321 miles. Price: £23,500, £795 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4c3690ff48ea
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 2,620 miles. Price: £24,292, the same price as this car. Dealer: D M Keith Byd Keighley in Keighley. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-9f3ec9ca68db
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 3,682 miles. Price: £23,690, £605 less than this car. Dealer: Snows BYD Newbury in Newbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-f384aec6057c

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 5,952 miles. Price: £24,295, the same price as this car. Dealer: Pentagon BYD Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-daeece336ed9