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: 6,801 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 6,801 miles, approximately 3,900 above the typical mileage for its age. The dealer is asking £23,900, which is £1,213 below the AskCar estimate of £25,113. To work out the AskCar estimate, we analyse UK dealer adverts for 829 BYD Seal U cars across different ages and specifications. We have tracked this advert today. You can find this car at Motor Match Stoke in Stoke-on-Trent. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,213 (4%) under the AskCar estimate of £25,113.

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 829 priced BYD Seal U adverts across different ages and specifications, as of 7 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 363 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2026 BYD Seal U advertised today. About half of 2026 BYD Seal U cars are gone from sale within a month of being advertised: 160 of the 317 first advertised between 10 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £23,900. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,900 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

252 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,582 to £35,595, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 6,832 miles. Price: £24,800, £900 more than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-6caf8dc14820
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,958 miles. Price: £24,299, £399 more than this car. Dealer: cinch in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-970509446ca8
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 6,976 miles. Price: £24,295, £395 more than this car. Dealer: Snows BYD Southampton in Southampton. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a1a8860fc042

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, 12 miles from this car. Mileage: 3,065 miles. Price: £25,290, £1,390 more than this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-620fc03a34ab