2025 BYD Seal 6 1.5 Boost

Overview

• Make: BYD
• Model: Seal 6
• Trim: Boost
• Version: 1.5 DM-i Boost CVT FWD Euro 6 4dr e (181 bhp)
• Year: 2025
• Mileage: 3,501 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 181 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 3,501 miles, this 2025 BYD Seal 6 Boost has covered about 2,300 fewer miles than other 2025 BYD Seal 6 cars. The dealer is asking £21,654, which is £1,166 below the AskCar estimate of £22,820. To work out the AskCar estimate, we analyse UK dealer adverts for 197 BYD Seal 6 cars across different ages and specifications. We first recorded this advert 22 days ago, and its asking price has since fallen by £1,487. The seller is Vertu BYD Worcester, based in Worcester. 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: £1,166 (5%) under the AskCar estimate of £22,820.

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 197 priced BYD Seal 6 adverts across different ages and specifications, as of 5 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 91 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2025 BYD Seal 6 has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 14 October 2026 at £23,141. Its asking price is now £21,654, £1,487 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 14 October 2026: £23,141
• 17 October 2026: £22,373
• 22 October 2026: £22,244
• 23 October 2026: £22,196
• 4 November 2026: £21,654

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,300 miles lower than the median mileage of a 2025 BYD Seal 6 on AskCar.

Similar cars

7 other 2025 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £20,980 to £32,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 2,897 miles. Price: £20,999, £655 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, £186 more than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-cade26e4b3f8
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, white. Mileage: 4,433 miles. Price: £22,195, £541 more than this car. Dealer: WJ King Vauxhall & BYD Gravesend in Gravesend. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-f648312d4ce5