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: 4,824 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

This 2026 BYD Seal U Boost is advertised with 4,824 miles, approximately 2,800 above the typical mileage for its age. The AskCar estimate for this car is £25,758. It is priced at £25,998, which is £240 above that estimate. The AskCar estimate uses UK dealer asking prices, including 853 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 49 days ago, the asking price has dropped by £500. The seller is Arnold Clark Mercedes-Benz Of Perth, based in Perth. 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: £240 (under 1%) over the AskCar estimate of £25,758.

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 49 days.

Price history

AskCar first saw this advert on 16 September 2026 at £26,498. Its asking price is now £25,998, £500 less. The latest price cut was seen on 6 October 2026.

Price changes recorded:

• 16 September 2026: £26,498
• 6 October 2026: £25,998

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,800 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: 4,786 miles. Price: £24,995, £1,003 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, blue. Mileage: 4,886 miles. Price: £26,778, £780 more than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e9cd7a0d56a3
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,707 miles. Price: £25,199, £799 less than this car. Dealer: cinch in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-76b67c4ff74d

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, 16 miles from this car. Mileage: 3,000 miles. Price: £28,000, £2,002 more than this car. Dealer: John Clark BYD Dundee in Dundee. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-626c11abdcca