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: 4,565 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

At 4,565 miles, this 2025 BYD Seal U Boost has covered about 3,600 fewer miles than other 2025 BYD Seal U cars. The AskCar estimate for this car is £24,911. It is priced at £23,590, which is £1,321 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. We first recorded this advert 20 days ago, and its asking price has since fallen by £305. You can find this car at EMG Motor Group in Royston. 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: £1,321 (5%) under the AskCar estimate of £24,911.

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 20 days.

Price history

AskCar first saw this advert on 15 October 2026 at £23,895. Its asking price is now £23,590, £305 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 15 October 2026: £23,895
• 3 November 2026: £23,590

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,600 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 4 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 4,560 miles. Price: £24,999, £1,409 more than this car. Dealer: Hartwell Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-15b534392d3c
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,558 miles. Price: £24,099, £509 more than this car. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-be9953bccf2c
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 4,511 miles. Price: £23,997, £407 more than this car. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-42e60796a161

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 8,000 miles. Price: £24,280, £690 more than this car. Dealer: Grainger Motor Group Mantles BYD Royston in Royston. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4cd62bd48fa3