2026 BYD Seal U 1.5 Boost

Price: £24,999. Fair price: £919 (3%) under the AskCar estimate of £25,918, our expected asking price for this car from its model, age, mileage and specification, drawing on 853 priced BYD Seal U adverts on AskCar as of 4 November 2026.

AskCar lists 877 used BYD Seal U from 161 UK dealerships, as of 4 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: 3,556 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 3,556 miles. Priced at £24,999, it is advertised £919 below the AskCar estimate of £25,918. The AskCar estimate uses UK dealer asking prices, including 853 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 10 days ago. The seller is Lookers BYD Middlesbrough, based in Middlesbrough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £919 (3%) under the AskCar estimate of £25,918.

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 853 priced BYD Seal U adverts across different ages and specifications, as of 4 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 366 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2026 BYD Seal U has been on sale for at least 10 days.

Price history

AskCar first saw this advert on 25 October 2026 at £24,999. Its asking price has not changed.

Price changes recorded:

  • 25 October 2026: £24,999
  • 27 October 2026: £24,899
  • 31 October 2026: £24,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,600 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

254 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 4 November 2026.

The 3 closest to this car in mileage:

  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 3,616 miles. Price: £26,299, £1,300 more than this car. Dealer: Gates of Harlow in Harlow. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-751c7b6b6753
  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 3,637 miles. Price: £26,299, £1,300 more than this car. Dealer: Gates of Harlow in Harlow. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-f84086c3f2fc
  • 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 3,440 miles. Price: £25,495, £496 more than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-0d11eb2061a8
  • The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 2,000 miles. Price: £27,498, £2,499 more than this car. Dealer: Lookers BYD Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-15377f2622cd

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

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Photos

37 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.