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: 5,631 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: Grey
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal U Boost has covered 5,631 miles, around 3,200 more miles than is typical for its age. Priced at £24,199, it is advertised £1,442 below the AskCar estimate of £25,641. 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 51 days ago. Its asking price has since fallen by £1,400. You can find this car at cinch in Peterborough. 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: £1,442 (5%) under the AskCar estimate of £25,641.

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 51 days.

Price history

AskCar first saw this advert on 12 September 2026 at £25,599. Its asking price is now £24,199, £1,400 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 12 September 2026: £25,599
• 17 September 2026: £25,799
• 18 September 2026: £25,399
• 23 September 2026: £24,999
• 2 October 2026: £24,799
• 8 October 2026: £24,599
• 17 October 2026: £24,499
• 24 October 2026: £24,299
• 29 October 2026: £24,199

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,200 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, white. Mileage: 5,603 miles. Price: £24,400, £201 more than this car. Dealer: Marshall BYD Swindon in Swindon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-97c8db18c73e
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 5,688 miles. Price: £25,650, £1,451 more than this car. Dealer: Donnelly Motorstore Dungannon in Dungannon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-aeb37283a22b
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 5,536 miles. Price: £24,995, £796 more than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c0ea402aced7

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 9,151 miles. Price: £23,799, £400 less than this car. Dealer: cinch in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2b29ad67e171