2025 BYD Seal U 1.5 Boost

Price: £22,490. Fair price: £682 (2%) under the AskCar estimate of £23,172, our expected asking price for this car from its model, age, mileage and specification, drawing on 829 priced BYD Seal U adverts on AskCar as of 7 November 2026.

AskCar lists 872 used BYD Seal U from 161 UK dealerships, as of 7 November 2026.

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: 12,391 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: Grey
CO2: 20 g/km
Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal U Boost is advertised with 12,391 miles, approximately 4,200 above the typical mileage for its age. Its asking price of £22,490 is £682 below the AskCar estimate of £23,172. The AskCar estimate uses UK dealer asking prices, including 829 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records today. The seller is D. M. Keith, based in Bradford. 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: £682 (2%) under the AskCar estimate of £23,172.

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 £22,490. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 4,200 miles higher 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, blue. Mileage: 12,719 miles. Price: £24,095, £1,605 more than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6ce458b4764b
2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,046 miles. Price: £23,371, £881 more than this car. Dealer: Lookers BYD Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e9e61a416116
2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,001 miles. Price: £23,498, £1,008 more than this car. Dealer: Arnold Clark Solihull Motorstore in Solihull. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-70f3a3e2a6fa

Browse all BYD Seal U cars for sale · 2025 BYD Seal U price guide