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: 4,791 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

With 4,791 miles on the clock, this 2025 BYD Seal U Boost has done roughly 3,500 fewer miles than a typical 2025 BYD Seal U. Its asking price of £24,495 is £549 below the AskCar estimate of £25,044. To work out the AskCar estimate, we analyse UK dealer adverts for 850 BYD Seal U cars across different ages and specifications. We first recorded this car for sale 12 days ago. It is for sale at Pentagon BYD Burton in Burton-on-Trent. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £549 (2%) under the AskCar estimate of £25,044.

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 850 priced BYD Seal U adverts across different ages and specifications, as of 2 November 2026.

A 2025 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £24,700: the median of the 484 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2025 BYD Seal U has been on sale for at least 12 days.

Price history

AskCar first saw this advert on 21 October 2026 at £24,495. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,500 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

97 other 2025 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £14,999 to £33,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 4,796 miles. Price: £24,495, the same price as this car. Dealer: Hartwell Watford in Watford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-966bbe91fbf0
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,802 miles. Price: £24,200, £295 less than this car. Dealer: Marshall BYD Swindon in Swindon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-70ce624ae04e
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,836 miles. Price: £24,998, £503 more than this car. Dealer: Arnold Clark Linwood Motorstore / BYD in Linwood. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-73dc8f2e79e3

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 8,807 miles. Price: £23,995, £500 less than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-9f862c9f553a