2025 BYD Seal 6 1.5 Boost

Overview

• Make: BYD
• Model: Seal 6
• Trim: Boost
• Version: 1.5 10kWh Boost CVT FWD Euro 6 (s/s) 4dr (180 bhp)
• Year: 2025
• Mileage: 4,433 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 180 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal 6 Boost is advertised with 4,433 miles on the clock. Its asking price of £22,195 is £273 above the AskCar estimate of £21,922. The AskCar estimate draws on 198 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 147 days ago. Its asking price has since fallen by £4,300. The seller is WJ King Vauxhall & BYD Gravesend, based in Gravesend. 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: £273 (1%) over the AskCar estimate of £21,922.

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 198 priced BYD Seal 6 adverts across different ages and specifications, as of 7 November 2026.

A 2025 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £22,200: the median of the 90 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2025 BYD Seal 6 has been on sale for at least 147 days.

Price history

AskCar first saw this advert on 13 June 2026 at £26,495. Its asking price is now £22,195, £4,300 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 18 June 2026: £26,495
• 6 September 2026: £24,395
• 10 September 2026: £24,295
• 24 September 2026: £23,365
• 1 October 2026: £23,235
• 3 October 2026: £23,035
• 8 October 2026: £22,795
• 5 November 2026: £22,195

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,700 miles lower than the median mileage of a 2025 BYD Seal 6 on AskCar.

Similar cars

5 other 2025 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £20,999 to £32,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 4,501 miles. Price: £22,896, £701 more than this car. Dealer: Peoples Liverpool Bootle in Bootle. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-2899fe3340dd
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 2,897 miles. Price: £20,999, £1,196 less than this car. Dealer: LSH Auto BYD Tamworth in Tamworth. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-05f15af92990
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 2,815 miles. Price: £21,840, £355 less than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-cade26e4b3f8