2025 BYD Seal U 1.5 Design

Overview

• Make: BYD
• Model: Seal U
• Trim: Design
• Version: 1.5 DM-i Design Auto 4WD Euro 6 5dr (319 bhp)
• Year: 2025
• Mileage: 7,328 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 1.5 litres, 319 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 23 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2025 BYD Seal U Design is 7,328 miles. Its asking price of £24,600 is £1,356 below the AskCar estimate of £25,956. 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 86 days, and its asking price is down £2,700. The seller is Marshall BYD Northampton, based in Northampton. 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: £1,356 (5%) under the AskCar estimate of £25,956.

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 86 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 13 August 2026 at £27,300. Its asking price is now £24,600, £2,700 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 13 August 2026: £27,300
• 21 August 2026: £26,900
• 28 August 2026: £26,600
• 2 September 2026: £26,400
• 4 September 2026: £26,100
• 8 September 2026: £26,000
• 11 September 2026: £25,600
• 17 September 2026: £25,300
• 18 September 2026: £25,700
• 23 September 2026: £25,400
• 25 September 2026: £24,900
• 2 October 2026: £25,300
• 8 October 2026: £25,000
• 17 October 2026: £24,900
• 24 October 2026: £24,700
• 29 October 2026: £24,600

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 900 miles lower 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, black. Mileage: 7,332 miles. Price: £26,998, £2,398 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-d4ac1132a45d
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 7,420 miles. Price: £25,731, £1,131 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-cf0df734b709
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, black. Mileage: 7,189 miles. Price: £25,773, £1,173 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-bed5d4d7ee9c

• The nearest: 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 8,520 miles. Price: £24,700, £100 more than this car. Dealer: Marshall BYD Northampton in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-3e30016bf35b