2026 BYD Seal U 1.5 Boost
Price: £25,299. Fair price: £681 (2%) under the AskCar estimate of £25,980, our expected asking price for this car from its model, age, mileage and specification, drawing on 859 priced BYD Seal U adverts on AskCar as of 5 November 2026.
AskCar lists 882 used BYD Seal U from 161 UK dealerships, as of 5 November 2026.
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: 3,057 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 has covered 3,057 miles. The AskCar estimate for this car is £25,980. It is priced at £25,299, which is £681 below that estimate. The AskCar estimate uses 859 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 19 days ago, the asking price has dropped by £300. It is advertised by cinch in Northampton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £681 (2%) under the AskCar estimate of £25,980.
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 859 priced BYD Seal U adverts across different ages and specifications, as of 5 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 374 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2026 BYD Seal U has been on sale for at least 19 days.
Price history
AskCar first saw this advert on 17 October 2026 at £25,599. Its asking price is now £25,299, £300 less. The latest price cut was seen on 27 October 2026.
Price changes recorded:
- 17 October 2026: £25,599
- 27 October 2026: £25,299
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 1,100 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.
Similar cars
255 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,599 to £35,595, as of 5 November 2026.
The 3 closest to this car in mileage:
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 3,065 miles. Price: £25,290, the same price as this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-620fc03a34ab
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 3,000 miles. Price: £25,299, the same price as this car. Dealer: SG Petch Durham in Durham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e997532382f7
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 3,000 miles. Price: £28,000, £2,701 more than this car. Dealer: John Clark BYD Dundee in Dundee. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-626c11abdcca
- The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 8,314 miles. Price: £23,900, £1,399 less than this car. Dealer: Marshall BYD Northampton in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-15ab27190f5f
Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide
More like this
- Used BYD Seal U Boost prices
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Photos
46 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.