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: 3,738 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: Gold
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BYD Seal 6 Boost is advertised with 3,738 miles, approximately 2,100 below the typical mileage for its age. Priced at £20,998, it is advertised £1,116 below the AskCar estimate of £22,114. The AskCar estimate uses UK dealer asking prices, including 197 BYD Seal 6 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 120 days ago, the asking price has dropped by £5,000. The seller is Arnold Clark Newcastle BYD, based in Newcastle Upon Tyne. 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: £1,116 (5%) under the AskCar estimate of £22,114.

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 120 days.

Price history

AskCar first saw this advert on 8 July 2026 at £25,998. Its asking price is now £20,998, £5,000 less. The latest price cut was seen on 3 October 2026.

Price changes recorded:

• 8 July 2026: £25,998
• 18 August 2026: £25,498
• 2 September 2026: £23,998
• 9 September 2026: £22,498
• 1 October 2026: £21,998
• 3 October 2026: £20,998

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,100 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 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 3,784 miles. Price: £22,395, £1,397 more than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-6181d5ad43da
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 3,579 miles. Price: £21,955, £957 more 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, black. Mileage: 3,500 miles. Price: £23,481, £2,483 more than this car. Dealer: Sandicliffe BYD Loughborough in Loughborough. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-801b601c3786

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black, 7 miles from this car. Mileage: 10 miles. Price: £34,695, £13,697 more than this car. Dealer: Arnold Clark Shiremoor Motorstore / MG / BYD / Vanstore in Shiremoor. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-4dcda4a49f58