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: 6,084 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

The advertised mileage for this 2025 BYD Seal 6 Boost is 6,084 miles. Priced at £21,998, it is advertised £275 above the AskCar estimate of £21,723. The AskCar estimate uses UK dealer asking prices, including 199 BYD Seal 6 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 122 days ago. Its asking price has since fallen by £3,700. The seller is Arnold Clark Preston Motorstore / BYD, based in Preston. 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

Fair price: £275 (1%) over the AskCar estimate of £21,723.

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 122 days.

Price history

AskCar first saw this advert on 7 July 2026 at £25,698. Its asking price is now £21,998, £3,700 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 7 July 2026: £25,698
• 29 August 2026: £25,298
• 18 September 2026: £23,998
• 29 September 2026: £23,698
• 29 October 2026: £21,998

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 100 miles lower 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 6 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 6,352 miles. Price: £22,900, £902 more than this car. Dealer: John Clark BYD Inverness in Inverness. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-9a140d592bb2
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 6,449 miles. Price: £21,498, £500 less than this car. Dealer: Arnold Clark in Stourbridge. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-5119c0f354e4
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 6,922 miles. Price: £21,490, £508 less than this car. Dealer: Lloyd Select Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-cb78a804b2bd

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white, under a mile from this car. Mileage: 3,204 miles. Price: £21,998, the same price as this car. Dealer: Arnold Clark Preston Motorstore / BYD in Preston. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-3546ab216922