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: 2,815 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: Blue
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 2,815 miles on the clock, this 2025 BYD Seal 6 Boost has done roughly 3,200 fewer miles than a typical 2025 BYD Seal 6. Its asking price of £21,840 is £805 below the AskCar estimate of £22,645. To work out the AskCar estimate, we analyse UK dealer adverts for 200 BYD Seal 6 cars across different ages and specifications. We first saw this car advertised 41 days ago. Its asking price has since fallen by £1,350. The seller is Evans Halshaw BYD Bury, based in Bury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £805 (3%) under the AskCar estimate of £22,645.

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 200 priced BYD Seal 6 adverts across different ages and specifications, as of 4 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 4 November 2026.

Time on sale

This 2025 BYD Seal 6 has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 24 September 2026 at £23,190. Its asking price is now £21,840, £1,350 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 24 September 2026: £23,190
• 25 September 2026: £22,720
• 30 September 2026: £22,250
• 2 October 2026: £22,220
• 22 October 2026: £22,020
• 27 October 2026: £21,840

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,200 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 4 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: £21,349, £491 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, white. Mileage: 3,501 miles. Price: £21,654, £186 less than this car. Dealer: Vertu BYD Worcester in Worcester. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-10e3b308eb40
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, white. Mileage: 1,425 miles. Price: £23,390, £1,550 more than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-f228318e09f3

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue, 29 miles from this car. Mileage: 4,501 miles. Price: £22,896, £1,056 more than this car. Dealer: Peoples Liverpool Bootle in Bootle. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-2899fe3340dd