2026 BYD Seal 6 1.5 Boost

Price: £20,800. Fair price: £289 (1%) under the AskCar estimate of £21,089, our expected asking price for this car from its model, age, mileage and specification, drawing on 198 priced BYD Seal 6 adverts on AskCar as of 7 November 2026.

AskCar lists 207 used BYD Seal 6 from 95 UK dealerships, as of 7 November 2026.

Overview

  • Make: BYD
  • Model: Seal 6
  • Trim: Boost
  • Version: 1.5 DM-i Boost CVT FWD Euro 6 4dr e (181 bhp)
  • Year: 2026
  • Mileage: 12,035 miles
  • Fuel: Plug-in hybrid (petrol)
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 1.5 litres, 181 bhp
  • Gearbox: Automatic (CVT)
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 52 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 12,035 miles, this 2026 BYD Seal 6 Boost has covered about 11,100 more miles than other 2026 BYD Seal 6 cars. Priced at £20,800, it is advertised £289 below the AskCar estimate of £21,089. The AskCar estimate draws on 198 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. The seller is Marshall BYD Northampton, based in Northampton. 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: £289 (1%) under the AskCar estimate of £21,089.

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

AskCar first saw this 2026 BYD Seal 6 advertised today. About 1 in 10 of 2026 BYD Seal 6 cars are gone from sale within a month of being advertised: 11 of the 78 first advertised between 8 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £20,800. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 11,100 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: 11,963 miles. Price: £21,000, £200 more than this car. Dealer: Marshall BYD Northampton in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-6dd633dc3e9a
  • 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 12,242 miles. Price: £20,839, the same price as this car. Dealer: LSH Auto BYD Tamworth in Tamworth. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-7aefe0edc2f9
  • 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 11,772 miles. Price: £21,099, £299 more than this car. Dealer: cinch in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-0a75dbf3e19a

Browse all BYD Seal 6 cars for sale · 2026 BYD Seal 6 price guide

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Photos

21 photos of this car are on its AskCar page.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.