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: 8,895 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

At 8,895 miles, this 2026 BYD Seal U Boost has covered about 6,900 more miles than other 2026 BYD Seal U cars. The AskCar estimate for this car is £24,714. It is priced at £27,489, which is £2,775 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. It first appeared in our advert records 40 days ago. The seller is Desmond Motors Londonderry, based in Londonderry. 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

Above the going rate: £2,775 (11%) over the AskCar estimate of £24,714.

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 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £27,489. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 6,900 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, black. Mileage: 9,052 miles. Price: £23,700, £3,789 less than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ee7575117fa9
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 8,733 miles. Price: £23,800, £3,689 less than this car. Dealer: Marshall BYD Ashford in Ashford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-8e516ece25cf
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 8,691 miles. Price: £23,995, £3,494 less than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5d07ed5a5feb

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 6,614 miles. Price: £27,489, the same price as this car. Dealer: Desmond Motors Londonderry in Derry. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2d6d723ef136