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: 9,151 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: White
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal U Boost is advertised with 9,151 miles, approximately 6,700 above the typical mileage for its age. The dealer is asking £23,799, which is £906 below the AskCar estimate of £24,705. To work out the AskCar estimate, we analyse UK dealer adverts for 850 BYD Seal U cars across different ages and specifications. The asking price is now £600 lower than when we first recorded the advert 33 days ago. It is for sale 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: £906 (3%) under the AskCar estimate of £24,705.

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 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £24,399. Its asking price is now £23,799, £600 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 30 September 2026: £24,399
• 2 October 2026: £24,199
• 17 October 2026: £23,899
• 29 October 2026: £23,799

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 6,700 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, black. Mileage: 9,209 miles. Price: £25,899, £2,100 more than this car. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a4999381ad3d
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 9,052 miles. Price: £23,700, £99 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, white. Mileage: 9,275 miles. Price: £23,700, £99 less than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-aa98ddd1bfad

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 5,308 miles. Price: £24,400, £601 more than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2bab2e9aa5d1