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: 3,500 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

With 3,500 miles on the clock, this 2025 BYD Seal 6 Boost has done roughly 2,600 fewer miles than a typical 2025 BYD Seal 6. Its asking price of £23,481 is £1,369 above the AskCar estimate of £22,112. The AskCar estimate draws on 198 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 163 days ago, the asking price has dropped by £1,648. The seller is Sandicliffe BYD Loughborough, based in Loughborough. 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: £1,369 (6%) over the AskCar estimate of £22,112.

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 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £25,129. Its asking price is now £23,481, £1,648 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

• 28 May 2026: £25,129
• 8 October 2026: £23,481

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,600 miles lower 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 7 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 3,579 miles. Price: £21,821, £1,660 less than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-e51d67705188
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, gold. Mileage: 3,738 miles. Price: £20,998, £2,483 less than this car. Dealer: Arnold Clark Newcastle BYD in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-2c2506fca294
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 3,784 miles. Price: £22,395, £1,086 less than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-6181d5ad43da

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue, 16 miles from this car. Mileage: 9,999 miles. Price: £19,595, £3,886 less than this car. Dealer: Pentagon BYD Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-dca2b79b3803