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: 8,880 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: White
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 8,880 miles, this 2025 BYD Seal 6 Boost has covered about 3,100 more miles than other 2025 BYD Seal 6 cars. The dealer is asking £22,790, which is £1,640 above the AskCar estimate of £21,150. 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 161 days ago, and its asking price has since fallen by £3,200. The seller is D. M. Keith, based in Grimsby. 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: £1,640 (7%) over the AskCar estimate of £21,150.

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 £25,990. Its asking price is now £22,790, £3,200 less. The latest price cut was seen on 16 September 2026.

Price changes recorded:

• 28 May 2026: £25,990
• 22 June 2026: £25,488
• 30 July 2026: £25,190
• 28 August 2026: £24,990
• 15 September 2026: £23,990
• 16 September 2026: £22,790

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,100 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, blue. Mileage: 8,704 miles. Price: £21,800, £990 less than this car. Dealer: Lmc Cars in Upminster. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-71f6b43adb5f
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 8,479 miles. Price: £20,994, £1,796 less than this car. Dealer: Perrys Broadstairs BYD in Broadstairs. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-537edcf0ec5f
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 8,347 miles. Price: £21,009, £1,781 less than this car. Dealer: Vertu BYD Worcester in Worcester. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-6c094745b21b