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: 5,600 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

This 2025 BYD Seal U Design has covered 5,600 miles, around 2,500 fewer miles than is typical for its age. The AskCar estimate for this car is £26,254. It is priced at £25,290, which is £964 below that estimate. The AskCar estimate uses UK dealer asking prices, including 859 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 14 days ago, and its asking price has since fallen by £105. The seller is Grainger Motor Group Mantles BYD Royston, based in Royston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £964 (3%) under the AskCar estimate of £26,254.

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 859 priced BYD Seal U adverts across different ages and specifications, as of 5 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 495 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2025 BYD Seal U has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 22 October 2026 at £25,395. Its asking price is now £25,290, £105 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 22 October 2026: £25,395
• 29 October 2026: £25,290

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,500 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

68 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 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, grey. Mileage: 5,500 miles. Price: £26,799, £1,509 more than this car. Dealer: SG Petch Durham in Durham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-916d01a583a7
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, white. Mileage: 5,767 miles. Price: £26,320, £1,030 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-0394d851fa1a
• 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, silver. Mileage: 5,300 miles. Price: £23,750, £1,540 less than this car. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-53e5d767fc59

• The nearest: 2025 BYD Seal U Design, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 8,678 miles. Price: £24,990, £300 less than this car. Dealer: Grainger Motor Group Mantles BYD Royston in Royston. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-275a8dd8fec9