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: 2,000 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 has covered 2,000 miles. The AskCar estimate for this car is £26,469. It is priced at £27,498, which is £1,029 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 37 days ago, the asking price has dropped by £301. The seller is Lookers BYD Middlesbrough, based in Middlesbrough. 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: £1,029 (3%) over the AskCar estimate of £26,469.

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 37 days.

Price history

AskCar first saw this advert on 28 September 2026 at £27,799. Its asking price is now £27,498, £301 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 28 September 2026: £27,799
• 10 October 2026: £27,499
• 31 October 2026: £27,498

Mileage and MOT

MOT: first test not yet due.

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: 2,000 miles. Price: £28,000, £502 more than this car. Dealer: John Clark BYD Dundee in Dundee. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-8ef441622db7
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 2,420 miles. Price: £26,203, £1,295 less than this car. Dealer: Glyn Hopkin BYD Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-089336b18a7c
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 2,464 miles. Price: £26,490, £1,008 less than this car. Dealer: SG Petch Darlington in Darlington. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-18af0734e0d2

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 3,556 miles. Price: £24,999, £2,499 less than this car. Dealer: Lookers BYD Middlesbrough in Middlesbrough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-89cc19f89f6a