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: 10,579 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 10,579 miles, this 2025 BYD Seal U Boost has covered about 2,400 more miles than other 2025 BYD Seal U cars. Priced at £23,532, it is advertised £13 above the AskCar estimate of £23,519. 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 105 days, and its asking price is down £1,348. The seller is D M Keith Byd Keighley, based in Keighley. 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: £13 (under 1%) over the AskCar estimate of £23,519.

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 105 days, and its asking price has been cut by £1,348. 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 22 July 2026 at £24,880. Its asking price is now £23,532, £1,348 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 22 July 2026: £24,880
• 28 July 2026: £24,972
• 2 August 2026: £24,922
• 11 August 2026: £24,630
• 15 August 2026: £24,462
• 18 August 2026: £24,513
• 19 August 2026: £24,510
• 20 August 2026: £24,289
• 21 August 2026: £24,273
• 25 August 2026: £24,248
• 26 August 2026: £24,123
• 27 August 2026: £24,094
• 28 August 2026: £24,076
• 31 August 2026: £24,026
• 2 September 2026: £23,877
• 3 September 2026: £23,873
• 4 September 2026: £23,868
• 5 September 2026: £23,832
• 8 September 2026: £23,774
• 9 September 2026: £23,784
• 16 September 2026: £24,299
• 30 September 2026: £23,768
• 5 October 2026: £23,686
• 7 October 2026: £23,777
• 9 October 2026: £23,723
• 11 October 2026: £23,586
• 16 October 2026: £23,532

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,400 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: 10,721 miles. Price: £23,040, £492 less than this car. Dealer: D. M. Keith Cupra York in York. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-1e3b9c14a18f
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 10,724 miles. Price: £22,477, £1,055 less than this car. Dealer: D. M. Keith in Leeds. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-c204fbdd6124
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 10,302 miles. Price: £23,698, £166 more than this car. Dealer: Arnold Clark Shiremoor Motorstore / MG / BYD / Vanstore in Shiremoor. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-d6a2f7eff82c

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 6,830 miles. Price: £24,122, £590 more than this car. Dealer: D M Keith Byd Keighley in Keighley. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-7786a7a7c0c8