2026 BYD Seal U 1.5 Boost

Price: £25,250. Fair price: £847 (3%) over the AskCar estimate of £24,403, our expected asking price for this car from its model, age, mileage and specification, drawing on 850 priced BYD Seal U adverts on AskCar as of 2 November 2026.

AskCar lists 866 used BYD Seal U from 159 UK dealerships, as of 2 November 2026.

Overview

  • Make: BYD
  • Model: Seal U
  • Trim: Boost
  • Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
  • Year: 2026
  • Mileage: 10,563 miles
  • Fuel: Plug-in hybrid (petrol)
  • Body: SUV, 5 doors, 5 seats
  • Engine: 1.5 litres, 214 bhp
  • Gearbox: Automatic (CVT)
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 20 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal U Boost has covered 10,563 miles, around 8,100 more miles than is typical for its age. Its asking price of £25,250 is £847 above the AskCar estimate of £24,403. To work out the AskCar estimate, we analyse UK dealer adverts for 850 BYD Seal U cars across different ages and specifications. We first saw this car advertised 52 days ago. Its asking price has since fallen by £1,200. The seller is Donnelly Motorstore Dungannon, based in Dungannon. 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: £847 (3%) over the AskCar estimate of £24,403.

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 850 priced BYD Seal U adverts across different ages and specifications, as of 2 November 2026.

A 2026 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £27,000: the median of the 362 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2026 BYD Seal U has been on sale for at least 52 days.

Price history

AskCar first saw this advert on 11 September 2026 at £26,450. Its asking price is now £25,250, £1,200 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

  • 11 September 2026: £26,450
  • 17 October 2026: £25,250

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 8,100 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

246 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,742 to £35,595, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 10,586 miles. Price: £23,699, £1,551 less than this car. Dealer: cinch in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c36e628b0dcc
  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 10,530 miles. Price: £24,499, £751 less than this car. Dealer: Gates Of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-b276ff785761
  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 10,431 miles. Price: £23,699, £1,551 less than this car. Dealer: cinch in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e04075c1af62
  • The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 5,688 miles. Price: £25,650, £400 more than this car. Dealer: Donnelly Motorstore Dungannon in Dungannon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-aeb37283a22b

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

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Photos

38 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.