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: 8,129 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 has covered 8,129 miles, around 7,200 more miles than is typical for its age. Priced at £22,299, it is advertised £398 above the AskCar estimate of £21,901. The AskCar estimate draws on 198 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 25 days ago, the asking price has dropped by £200. The seller is Halliwell Jones North Wales BYD, based in Llandudno Junction. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £398 (1%) over the AskCar estimate of £21,901.

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 198 priced BYD Seal 6 adverts across different ages and specifications, as of 7 November 2026.

A 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,500: the median of the 112 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2026 BYD Seal 6 has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 13 October 2026 at £22,499. Its asking price is now £22,299, £200 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 13 October 2026: £22,499
• 20 October 2026: £22,399
• 27 October 2026: £22,299

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 7,200 miles higher than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

39 other 2026 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £20,000 to £33,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 7,999 miles. Price: £28,495, £6,196 more than this car. Dealer: Pentagon BYD Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-c6abee93260b
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 8,495 miles. Price: £23,990, £1,691 more than this car. Dealer: D. M. Keith in Leeds. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-1f3f5faa086b
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, beige. Mileage: 6,641 miles. Price: £21,597, £702 less than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-d8b4edd7a917

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black, 50 miles from this car. Mileage: 25 miles. Price: £22,495, £196 more than this car. Dealer: Pentagon Warrington in Warrington. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-2ef10f172da7