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: 11,772 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

With 11,772 miles on the clock, this 2025 BYD Seal U Boost has done roughly 3,600 more miles than a typical 2025 BYD Seal U. The AskCar estimate for this car is £23,355. It is priced at £22,995, which is £360 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 132 days, and its asking price is down £1,494. The seller is Startin BYD (Redditch), based in Redditch. 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: £360 (1%) under the AskCar estimate of £23,355.

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

The dealer may accept less. This 2025 BYD Seal U has been on sale for at least 132 days, and its asking price has been cut by £1,494. About half of 2025 BYD Seal U cars are gone from sale within a month of being advertised: 605 of the 1,172 first advertised between 8 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 25 June 2026 at £24,489. Its asking price is now £22,995, £1,494 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 26 June 2026: £24,489
• 30 August 2026: £23,995
• 5 September 2026: £23,895
• 22 September 2026: £23,495
• 6 October 2026: £23,295
• 24 October 2026: £22,995

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,600 miles higher 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, blue. Mileage: 11,822 miles. Price: £24,695, £1,700 more than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-ab802f2a767b
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,001 miles. Price: £23,498, £503 more than this car. Dealer: Arnold Clark Solihull Motorstore in Solihull. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-70f3a3e2a6fa
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,046 miles. Price: £23,371, £376 more than this car. Dealer: Lookers BYD Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e9e61a416116

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 9,314 miles. Price: £22,795, £200 less than this car. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-9a301ee1344c