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) 5dr (180 bhp)
• Year: 2025
• Mileage: 10,393 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Estate, 5 doors, 5 seats
• Engine: 1.5 litres, 180 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal 6 Boost has covered 10,393 miles, around 4,300 more miles than is typical for its age. Its asking price of £19,999 is £1,520 below the AskCar estimate of £21,519. The AskCar estimate uses 199 UK dealer adverts for the BYD Seal 6, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 164 days ago. Its asking price has since fallen by £5,696. The seller is Stoneacre, based in Wigan. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,520 (7%) under the AskCar estimate of £21,519.

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 199 priced BYD Seal 6 adverts across different ages and specifications, as of 8 November 2026.

A 2025 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £22,100: the median of the 92 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2025 BYD Seal 6 has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £25,695. Its asking price is now £19,999, £5,696 less. The latest price cut was seen on 8 November 2026.

Price changes recorded:

• 28 May 2026: £25,695
• 1 June 2026: £24,995
• 6 July 2026: £23,995
• 31 July 2026: £22,997
• 10 August 2026: £22,497
• 12 August 2026: £23,995
• 18 August 2026: £23,795
• 14 September 2026: £22,497
• 1 October 2026: £21,497
• 19 October 2026: £21,000
• 28 October 2026: £20,495
• 8 November 2026: £19,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 4,300 miles higher than the median mileage of a 2025 BYD Seal 6 on AskCar.

Similar cars

45 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 8 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, gold. Mileage: 10,273 miles. Price: £20,000, the same price as this car. Dealer: Evans Halshaw BYD Mansfield in Mansfield. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-bdddc4c6b9cf
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 10,580 miles. Price: £21,490, £1,491 more than this car. Dealer: D. M. Keith in Bradford. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-e60a8aa77754
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 10,665 miles. Price: £21,190, £1,191 more than this car. Dealer: Stoneacre in Grantham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-f42885015a72