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 5dr e (181 bhp)
• Year: 2025
• Mileage: 8,000 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Estate, 5 doors, 5 seats
• Engine: 1.5 litres, 181 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal 6 Boost has covered 8,000 miles, around 2,200 more miles than is typical for its age. The dealer is asking £23,000, which is £1,664 above the AskCar estimate of £21,336. To work out the AskCar estimate, we analyse UK dealer adverts for 197 BYD Seal 6 cars across different ages and specifications. The asking price is now £5,900 lower than when we first recorded the advert 161 days ago. It is for sale at Marshall BYD St Neots in St. Neots. 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: £1,664 (7%) over the AskCar estimate of £21,336.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £28,900. Its asking price is now £23,000, £5,900 less. The latest price cut was seen on 25 September 2026.

Price changes recorded:

• 28 May 2026: £28,900
• 25 September 2026: £23,000

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,200 miles higher than the median mileage of a 2025 BYD Seal 6 on AskCar.

Similar cars

48 other 2025 BYD Seal 6 Boost 1.5 plug-in hybrid automatic estates are for sale at UK dealers, from £19,595 to £34,695, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, gold. Mileage: 8,000 miles. Price: £21,899, £1,101 less than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-7789747fcc33
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 7,999 miles. Price: £22,153, £847 less than this car. Dealer: Peoples Liverpool Prescot in Prescot. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-b33016bbe2a5
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 7,870 miles. Price: £20,480, £2,520 less than this car. Dealer: Evans Halshaw BYD Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-55ac1251ffc5

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue, 22 miles from this car. Mileage: 5,227 miles. Price: £26,999, £3,999 more than this car. Dealer: Gates Of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-0e151d3455b7