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: 10,851 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 10,851 miles, this 2026 BYD Seal U Boost has covered about 8,900 more miles than other 2026 BYD Seal U cars. The dealer is asking £23,981, which is £329 below the AskCar estimate of £24,310. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. The asking price is now £1,944 lower than when we first recorded the advert 19 days ago. You can find this car at Glyn Hopkin BYD East London in Manor Park. 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: £329 (1%) under the AskCar estimate of £24,310.

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 19 days.

Price history

AskCar first saw this advert on 16 October 2026 at £25,925. Its asking price is now £23,981, £1,944 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 16 October 2026: £25,925
• 21 October 2026: £24,323
• 24 October 2026: £24,288
• 31 October 2026: £24,232
• 4 November 2026: £23,981

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 8,900 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: 10,851 miles. Price: £23,500, £481 less than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-58f6a7e71cb0
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 10,994 miles. Price: £23,599, £382 less than this car. Dealer: cinch in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c6859f6b292f
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 11,103 miles. Price: £23,500, £481 less than this car. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a95cabb39e43

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, 9 miles from this car. Mileage: 5,103 miles. Price: £25,045, £1,064 more than this car. Dealer: Glyn Hopkin BYD Waltham Abbey in Waltham Abbey. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-4ca4bc786dce