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: 2,897 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: Black
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal 6 Boost is advertised with 2,897 miles, approximately 3,300 below the typical mileage for its age. Priced at £20,999, it is advertised £1,852 below the AskCar estimate of £22,851. To work out the AskCar estimate, we analyse UK dealer adverts for 199 BYD Seal 6 cars across different ages and specifications. We first recorded this advert 44 days ago, and its asking price has since fallen by £1,498. The seller is LSH Auto BYD Tamworth, based in Tamworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Good value: £1,852 (8%) under the AskCar estimate of £22,851.

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 6 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 93 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2025 BYD Seal 6 has been on sale for at least 44 days.

Price history

AskCar first saw this advert on 23 September 2026 at £22,497. Its asking price is now £20,999, £1,498 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 23 September 2026: £22,497
• 9 October 2026: £23,402
• 21 October 2026: £22,318
• 25 October 2026: £21,493
• 30 October 2026: £21,979
• 4 November 2026: £21,349
• 5 November 2026: £20,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,300 miles lower than the median mileage of a 2025 BYD Seal 6 on AskCar.

Similar cars

6 other 2025 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £21,654 to £32,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 2,815 miles. Price: £21,840, £841 more than this car. Dealer: Evans Halshaw BYD Bury in Bury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-cade26e4b3f8
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, white. Mileage: 3,501 miles. Price: £21,654, £655 more 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: £21,990, £991 more than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-f228318e09f3