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: 11,822 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 is advertised with 11,822 miles, approximately 3,700 above the typical mileage for its age. The AskCar estimate for this car is £23,348. It is priced at £24,695, which is £1,347 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. We first saw this car advertised 53 days ago. Its asking price has since fallen by £300. The seller is Busseys BYD Norwich, based in Norwich. 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: £1,347 (5%) over the AskCar estimate of £23,348.

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 53 days.

Price history

AskCar first saw this advert on 12 September 2026 at £24,995. Its asking price is now £24,695, £300 less. The latest price cut was seen on 10 October 2026.

Price changes recorded:

• 12 September 2026: £24,995
• 10 October 2026: £24,695

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,700 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, white. Mileage: 11,772 miles. Price: £22,995, £1,700 less than this car. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6b5fb4ce08a5
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,001 miles. Price: £23,498, £1,197 less 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, £1,324 less 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: 12,719 miles. Price: £24,095, £600 less than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6ce458b4764b