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: 3,500 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 has covered 3,500 miles, around 2,600 more miles than is typical for its age. The AskCar estimate for this car is £23,075. It is priced at £23,499, which is £424 above that estimate. The AskCar estimate draws on 197 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 161 days ago, the asking price has dropped by £4,500. The seller is SG Petch Durham, based in Durham. 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: £424 (1%) over the AskCar estimate of £23,075.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £27,999. Its asking price is now £23,499, £4,500 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 28 May 2026: £27,999
• 8 September 2026: £24,999
• 11 September 2026: £24,499
• 7 October 2026: £23,999
• 25 October 2026: £23,799
• 28 October 2026: £23,499

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,600 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 £19,990 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, black. Mileage: 3,517 miles. Price: £21,990, £1,509 less than this car. Dealer: Marshall BYD Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-05f27af50615
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue. Mileage: 3,336 miles. Price: £23,495, the same price as this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-95582b9ebb75
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 3,732 miles. Price: £25,308, £1,809 more than this car. Dealer: BYD Alan Day New Southgate in New Southgate. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-79be54488ce2

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue, under a mile from this car. Mileage: 100 miles. Price: £24,999, £1,500 more than this car. Dealer: SG Petch Durham in Durham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-17cf7494d65e