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: 4,886 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: Blue
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 4,886 miles on the clock, this 2026 BYD Seal U Boost has done roughly 2,900 more miles than a typical 2026 BYD Seal U. The AskCar estimate for this car is £25,750. It is priced at £26,778, which is £1,028 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. The dealer may accept less. This car has been on sale for at least 67 days, and its asking price is down £2,212. It is for sale at D. M. Keith in Doncaster. 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: £1,028 (3%) over the AskCar estimate of £25,750.

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

The dealer may accept less. This 2026 BYD Seal U has been on sale for at least 67 days, and its asking price has been cut by £2,212. About half of 2026 BYD Seal U cars are gone from sale within a month of being advertised: 151 of the 300 first advertised between 10 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 29 August 2026 at £28,990. Its asking price is now £26,778, £2,212 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 29 August 2026: £28,990
• 18 September 2026: £27,990
• 6 October 2026: £27,490
• 1 November 2026: £26,990
• 4 November 2026: £26,778

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,900 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, grey. Mileage: 4,824 miles. Price: £25,998, £780 less than this car. Dealer: Arnold Clark Mercedes-Benz Of Perth in Perth. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a7171d3a7235
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 4,786 miles. Price: £24,995, £1,783 less than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5bb4b451c23b
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 5,000 miles. Price: £24,765, £2,013 less than this car. Dealer: EMG Motor Group Spalding BYD in Spalding. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-1350af31af36