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: 10,713 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: Black
• CO2: 26 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal U Design is advertised with 10,713 miles, approximately 2,400 above the typical mileage for its age. Its asking price of £24,499 is £21 below the AskCar estimate of £24,520. The AskCar estimate uses 914 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. The seller is Hartwell Dunstable, based in Dunstable. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £21 (under 1%) under the AskCar estimate of £24,520.

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 914 priced BYD Seal U adverts across different ages and specifications, as of 12 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 522 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2025 BYD Seal U advertised today. About half of 2025 BYD Seal U cars are gone from sale within a month of being advertised: 660 of the 1,239 first advertised between 12 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 12 November 2026 at £24,499. Its asking price has not changed.

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

77 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 12 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 10,627 miles. Price: £23,890, £609 less than this car. Dealer: Snows BYD Newbury in Newbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-7dcacf40e060
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 10,894 miles. Price: £25,460, £961 more than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-9b567d40ccb8
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 10,432 miles. Price: £25,228, £729 more than this car. Dealer: D. M. Keith Cupra York in York. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-ac343afc9625

• The nearest: 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 9,262 miles. Price: £24,899, £400 more than this car. Dealer: Hartwell Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6a8207afba8e