2026 BYD Seal 6 1.5 Boost

Overview

• Make: BYD
• Model: Seal 6
• Trim: Boost
• Version: 1.5 10kWh Boost CVT FWD Euro 6 (s/s) 4dr (180 bhp)
• Year: 2026
• Mileage: 250 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 180 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal 6 Boost is advertised with 250 miles on the clock. Its asking price of £24,490 is £547 below the AskCar estimate of £25,037. The AskCar estimate uses UK dealer asking prices, including 197 BYD Seal 6 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 90 days ago, and its asking price has since fallen by £1,000. The seller is Sinclair Volkswagen (Swansea), based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £547 (2%) under the AskCar estimate of £25,037.

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 2 November 2026.

A 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,900: the median of the 106 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2026 BYD Seal 6 has been on sale for at least 90 days.

Price history

AskCar first saw this advert on 4 August 2026 at £25,490. Its asking price is now £24,490, £1,000 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 5 August 2026: £25,490
• 21 October 2026: £24,490

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 500 miles lower than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

36 other 2026 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £19,800 to £33,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 224 miles. Price: £26,000, £1,510 more than this car. Dealer: John Clark BYD Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-2d24fcf437eb
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 150 miles. Price: £23,395, £1,095 less than this car. Dealer: EMG Motor Group Spalding BYD in Spalding. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-15ac2958038f
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 39 miles. Price: £22,949, £1,541 less than this car. Dealer: Hartwell Banbury in Banbury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-9f3a18f16eac

• The nearest: 2025 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black, 61 miles from this car. Mileage: 18 miles. Price: £24,499, the same price as this car. Dealer: Hartwell Hereford in Hereford. AskCar page: https://askcar.co.uk/car/byd-seal-6-2025-f0aa62fc81e6