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: 8,685 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: Black
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal U Boost has covered 8,685 miles, around 6,700 more miles than is typical for its age. The dealer is asking £23,995, which is £773 below the AskCar estimate of £24,768. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. We first saw this car advertised 28 days ago. Its asking price has since fallen by £300. The seller is Startin BYD (Redditch), based in Redditch. 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: £773 (3%) under the AskCar estimate of £24,768.

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 28 days.

Price history

AskCar first saw this advert on 7 October 2026 at £24,295. Its asking price is now £23,995, £300 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 7 October 2026: £24,295
• 24 October 2026: £23,995

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

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, white. Mileage: 8,691 miles. Price: £23,995, the same price as this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5d07ed5a5feb
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 8,733 miles. Price: £23,800, £195 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, black. Mileage: 8,595 miles. Price: £23,800, £195 less than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-aab1a285d1ba

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 8,129 miles. Price: £23,295, £700 less than this car. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e6bc4392f6c6