2026 BYD Seal U 1.5 Boost
Price: £23,590. Fair price: £546 (2%) under the AskCar estimate of £24,136, 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: 12,071 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: Black
- CO2: 20 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 12,071 miles, this 2026 BYD Seal U Boost has covered about 10,100 more miles than other 2026 BYD Seal U cars. Priced at £23,590, it is advertised £546 below the AskCar estimate of £24,136. The AskCar estimate uses 859 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 4 days ago. The seller is Swansway Garages BYD Chester, based in Chester. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £546 (2%) under the AskCar estimate of £24,136.
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
AskCar first saw this 2026 BYD Seal U advertised 4 days ago. About half of 2026 BYD Seal U cars are gone from sale within a month of being advertised: 157 of the 306 first advertised between 10 July 2026 and 2 October 2026.
Price history
AskCar first saw this advert on 1 November 2026 at £23,590. Its asking price has not changed.
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 10,100 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, white. Mileage: 12,039 miles. Price: £23,300, £290 less than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-afd1ab77ee16
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 12,038 miles. Price: £23,800, £210 more than this car. Dealer: Marshall BYD Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a968590d2d5a
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 12,160 miles. Price: £27,489, £3,899 more than this car. Dealer: Desmond Motors Londonderry in Derry. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-b9fc50dccc0a
- The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black, under a mile from this car. Mileage: 8,058 miles. Price: £24,290, £700 more than this car. Dealer: Swansway Garages BYD Chester in Chester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-f70aaec7445b
Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide
More like this
- Used BYD Seal U Boost prices
- Used BYD Seal U for sale under £30,000
- Used BYD Seal U for sale near Chester
Photos
5 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.