2026 BYD Seal U 1.5 Boost

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: 12,765 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: Blue
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 12,765 miles on the clock, this 2026 BYD Seal U Boost has done roughly 10,800 more miles than a typical 2026 BYD Seal U. Priced at £22,599, it is advertised £1,440 below the AskCar estimate of £24,039. The AskCar estimate uses 859 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 57 days ago. Its asking price has since fallen by £1,612. You can find this car at D. M. Keith in Leeds. 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: £1,440 (5%) under the AskCar estimate of £24,039.

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 859 priced BYD Seal U adverts across different ages and specifications, as of 5 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 374 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2026 BYD Seal U has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 9 September 2026 at £24,211. Its asking price is now £22,599, £1,612 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 9 September 2026: £24,211
• 10 September 2026: £24,358
• 11 September 2026: £24,292
• 15 September 2026: £24,238
• 18 September 2026: £24,180
• 20 September 2026: £23,957
• 21 September 2026: £24,093
• 24 September 2026: £23,875
• 25 September 2026: £23,815
• 29 September 2026: £23,704
• 2 October 2026: £23,802
• 3 October 2026: £23,697
• 5 October 2026: £23,618
• 8 October 2026: £23,691
• 9 October 2026: £23,579
• 11 October 2026: £23,550
• 13 October 2026: £23,544
• 15 October 2026: £23,377
• 24 October 2026: £22,837
• 25 October 2026: £22,820
• 27 October 2026: £22,742
• 5 November 2026: £22,599

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 10,800 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

255 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 5 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 12,727 miles. Price: £23,399, £800 more than this car. Dealer: cinch in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-9ecc8fbbb4f2
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 12,831 miles. Price: £23,300, £701 more than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-16c965f94019
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 12,843 miles. Price: £22,742, £143 more than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ef42b93fcaf4