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: 6,592 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

This 2026 BYD Seal U Boost is advertised with 6,592 miles, approximately 4,100 above the typical mileage for its age. Priced at £24,988, it is advertised £394 below the AskCar estimate of £25,382. The AskCar estimate uses UK dealer asking prices, including 850 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 31 days ago. Its asking price has since fallen by £1,007. The seller is Snows BYD Waterlooville, based in Waterlooville. 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: £394 (1%) under the AskCar estimate of £25,382.

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 31 days.

Price history

AskCar first saw this advert on 2 October 2026 at £25,995. Its asking price is now £24,988, £1,007 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 2 October 2026: £25,995
• 17 October 2026: £24,988

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 4,100 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: 6,582 miles. Price: £24,990, the same price as this car. Dealer: Lloyd Select Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-095a0d36b8ee
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,614 miles. Price: £27,489, £2,501 more than this car. Dealer: Desmond Motors Londonderry in Derry. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2d6d723ef136
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,431 miles. Price: £24,299, £689 less than this car. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c42125577a2f

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, 36 miles from this car. Mileage: 57 miles. Price: £26,990, £2,002 more than this car. Dealer: BYD Brighton in Brighton and Hove. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-d4242955d32c