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: 9,262 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: Grey
• CO2: 26 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2025 BYD Seal U Design is 9,262 miles. Its asking price of £24,899 is £111 below the AskCar estimate of £25,010. The AskCar estimate uses UK dealer asking prices, including 895 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 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 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £111 (under 1%) under the AskCar estimate of £25,010.

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 895 priced BYD Seal U adverts across different ages and specifications, as of 11 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 514 for sale on AskCar, as of 11 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: 661 of the 1,242 first advertised between 11 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £24,899. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,100 miles higher than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

79 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 11 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 9,167 miles. Price: £24,890, the same price as this car. Dealer: Swansway Garages BYD Chester in Chester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4d29c9058ba4
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, blue. Mileage: 9,160 miles. Price: £26,998, £2,099 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-d8fcba823f3f
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, black. Mileage: 9,122 miles. Price: £24,999, £100 more than this car. Dealer: Thurlow Nunn in Lowestoft. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-d39503b456ec

• The nearest: 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey, 13 miles from this car. Mileage: 12,271 miles. Price: £25,899, £1,000 more than this car. Dealer: Gates Of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-c3ca622da47d