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) 5dr (180 bhp)
• Year: 2026
• Mileage: 12,915 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Estate, 5 doors, 5 seats
• Engine: 1.5 litres, 180 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal 6 Boost is advertised with 12,915 miles, approximately 12,000 above the typical mileage for its age. Priced at £19,990, it is advertised £1,462 below the AskCar estimate of £21,452. The AskCar estimate uses 197 UK dealer adverts for the BYD Seal 6, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 29 days ago, the asking price has dropped by £1,000. The seller is Swansway Garages BYD Crewe, based in Crewe. 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: £1,462 (6%) under the AskCar estimate of £21,452.

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 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,800: the median of the 110 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2026 BYD Seal 6 has been on sale for at least 29 days.

Price history

AskCar first saw this advert on 7 October 2026 at £20,990. Its asking price is now £19,990, £1,000 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 7 October 2026: £20,990
• 24 October 2026: £19,990

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 12,000 miles higher than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

62 other 2026 BYD Seal 6 Boost 1.5 plug-in hybrid automatic estates are for sale at UK dealers, from £20,700 to £29,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 12,276 miles. Price: £20,700, £710 more than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-114098f0616f
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white. Mileage: 11,670 miles. Price: £20,995, £1,005 more than this car. Dealer: All Electric BYD Birmingham South in Birmingham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-8681392da391
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white. Mileage: 11,111 miles. Price: £22,026, £2,036 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-f67dd6776886

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white, under a mile from this car. Mileage: 2,500 miles. Price: £23,990, £4,000 more than this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-4d1e509421e3