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: 6,449 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

This 2025 BYD Seal 6 Boost has covered 6,449 miles. The dealer is asking £21,498, which is £147 below the AskCar estimate of £21,645. To work out the AskCar estimate, we analyse UK dealer adverts for 199 BYD Seal 6 cars across different ages and specifications. Since we first spotted the advert 52 days ago, the asking price has dropped by £3,000. The seller is Arnold Clark, based in Stourbridge. 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: £147 (under 1%) under the AskCar estimate of £21,645.

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 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 52 days.

Price history

AskCar first saw this advert on 15 September 2026 at £24,498. Its asking price is now £21,498, £3,000 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 15 September 2026: £24,498
• 25 September 2026: £23,498
• 3 October 2026: £22,998
• 8 October 2026: £22,498
• 13 October 2026: £21,798
• 17 October 2026: £21,498

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 200 miles higher 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, £1,402 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: 6,084 miles. Price: £21,998, £500 more than this car. Dealer: Arnold Clark Preston Motorstore / BYD in Preston. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-b4712f5021f8
• 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 6,922 miles. Price: £21,490, the same price as this car. Dealer: Lloyd Select Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-cb78a804b2bd