2025 BYD Seal U 1.5 Boost

Overview

• Make: BYD
• Model: Seal U
• Trim: Boost
• Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
• Year: 2025
• Mileage: 12,719 miles
• Fuel: Plug-in hybrid (petrol)
• Body: SUV, 5 doors, 5 seats
• Engine: 1.5 litres, 214 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal U Boost is advertised with 12,719 miles, approximately 4,700 above the typical mileage for its age. The AskCar estimate for this car is £23,228. It is priced at £24,095, which is £867 above that estimate. The AskCar estimate draws on 859 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 54 days ago. The seller is Busseys BYD Norwich, based in Norwich. 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: £867 (3%) over the AskCar estimate of £23,228.

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 54 days.

Price history

AskCar first saw this advert on 12 September 2026 at £23,995. Its asking price is now £24,095, £100 more.

Price changes recorded:

• 12 September 2026: £23,995
• 10 October 2026: £24,095

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 4,700 miles higher than the median mileage of a 2025 BYD Seal U on AskCar.

Similar cars

102 other 2025 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,440 to £33,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 13,156 miles. Price: £22,880, £1,215 less than this car. Dealer: EMG Motor Group Spalding BYD in Spalding. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-b48f92531fb3
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,046 miles. Price: £23,371, £724 less than this car. Dealer: Lookers BYD Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e9e61a416116
• 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 13,427 miles. Price: £23,498, £597 less than this car. Dealer: Arnold Clark Aberdeen Mazda Chery Jeep Alfa Romeo Leapmotor Lepas in Aberdeen. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e942847f23b7

• The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 11,822 miles. Price: £24,695, £600 more than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-ab802f2a767b