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: 6,655 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 6,655 miles. The dealer is asking £23,519, which is £913 below the AskCar estimate of £24,432. To work out the AskCar estimate, we analyse UK dealer adverts for 859 BYD Seal U cars across different ages and specifications. We first recorded this advert 22 days ago, and its asking price has since fallen by £616. The seller is Vertu BYD Worcester, based in Worcester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £913 (3%) under the AskCar estimate of £24,432.

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 859 priced BYD Seal U adverts across different ages and specifications, as of 5 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 495 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2025 BYD Seal U has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 14 October 2026 at £24,135. Its asking price is now £23,519, £616 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 14 October 2026: £24,135
• 16 October 2026: £24,133
• 17 October 2026: £24,125
• 20 October 2026: £24,021
• 22 October 2026: £23,996
• 23 October 2026: £23,936
• 27 October 2026: £23,735
• 31 October 2026: £23,625
• 3 November 2026: £23,519

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,400 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 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 6,659 miles. Price: £23,795, £276 more than this car. Dealer: Pentagon Derby in Derby. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-91f092f770ce
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 6,735 miles. Price: £23,390, £129 less than this car. Dealer: Motor Village in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-74867024bf9e
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,538 miles. Price: £23,880, £361 more than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-81e44933916c

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 1,806 miles. Price: £24,341, £822 more than this car. Dealer: Vertu BYD Worcester in Worcester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-1770ae130868