2025 BYD Seal U 1.5 Design

Overview

• Make: BYD
• Model: Seal U
• Trim: Design
• Version: 1.5 18.3kWh Design CVT 4WD Euro 6 (s/s) 5dr (319 bhp)
• Year: 2025
• Mileage: 21,111 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 1.5 litres, 319 bhp
• Gearbox: Automatic (CVT)
• Drive: Four-wheel drive
• Colour: White
• CO2: 26 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 21,111 miles on the clock, this 2025 BYD Seal U Design has done roughly 12,900 more miles than a typical 2025 BYD Seal U. Priced at £22,899, it is advertised £356 below the AskCar estimate of £23,255. To work out the AskCar estimate, we analyse UK dealer adverts for 829 BYD Seal U cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 128 days, and its asking price has been cut by £2,700. It is advertised by Halliwell Jones North Wales BYD in Llandudno Junction. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £356 (1%) under the AskCar estimate of £23,255.

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 829 priced BYD Seal U adverts across different ages and specifications, as of 7 November 2026.

A 2025 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £24,500: the median of the 476 for sale on AskCar, as of 7 November 2026.

Time on sale

The dealer may accept less. This 2025 BYD Seal U has been on sale for at least 128 days, and its asking price has been cut by £2,700. About half of 2025 BYD Seal U cars are gone from sale within a month of being advertised: 622 of the 1,196 first advertised between 8 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 2 July 2026 at £25,599. Its asking price is now £22,899, £2,700 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 2 July 2026: £25,599
• 15 July 2026: £25,299
• 22 July 2026: £24,999
• 1 August 2026: £24,799
• 20 August 2026: £24,699
• 8 September 2026: £24,499
• 24 September 2026: £23,999
• 26 September 2026: £23,499
• 3 October 2026: £23,399
• 13 October 2026: £23,299
• 20 October 2026: £23,199
• 27 October 2026: £23,099
• 7 November 2026: £22,899

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 12,900 miles higher than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

75 other 2025 BYD Seal U Design 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £18,990 to £38,595, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, blue. Mileage: 16,999 miles. Price: £25,995, £3,096 more than this car. Dealer: Pentagon Warrington in Warrington. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-ae5b196952e0
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, white. Mileage: 15,953 miles. Price: £24,500, £1,601 more than this car. Dealer: Lloyd AllRoad in Carlisle. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-db271369edac
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, white. Mileage: 15,538 miles. Price: £26,397, £3,498 more than this car. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-430e57062918

• The nearest: 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey, 37 miles from this car. Mileage: 9,167 miles. Price: £24,890, £1,991 more than this car. Dealer: Swansway Garages BYD Chester in Chester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4d29c9058ba4