2026 BYD Seal U 1.5 Boost
Price: £23,949. Fair price: £553 (2%) under the AskCar estimate of £24,502, our expected asking price for this car from its model, age, mileage and specification, drawing on 895 priced BYD Seal U adverts on AskCar as of 11 November 2026.
AskCar lists 914 used BYD Seal U from 161 UK dealerships, as of 11 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: 8,751 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 8,751 miles, around 5,000 more miles than is typical for its age. Its asking price of £23,949 is £553 below the AskCar estimate of £24,502. The AskCar estimate draws on 895 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. It is for sale at Hartwell Kidlington in Oxon. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 11 November 2026.
Hartwell Kidlington is rated 4.0 out of 5 on Google.
Price
Fair price: £553 (2%) under the AskCar estimate of £24,502.
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 895 priced BYD Seal U adverts across different ages and specifications, as of 11 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 389 for sale on AskCar, as of 11 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: 181 of the 343 first advertised between 11 July 2026 and 8 October 2026.
Price history
AskCar first saw this advert on 11 November 2026 at £23,949. Its asking price has not changed.
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 5,000 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.
Similar cars
269 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,455 to £35,595, as of 11 November 2026.
The 3 closest to this car in mileage:
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 8,733 miles. Price: £23,799, £150 less than this car. Dealer: cinch in Ashford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5dafcefb154c
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 8,691 miles. Price: £23,395, £554 less than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5d07ed5a5feb
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 8,685 miles. Price: £23,995, the same price as this car. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-826f39ac2faa
- The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 5,551 miles. Price: £24,249, £300 more than this car. Dealer: Hartwell Kidlington in Kidlington. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2ac74301821c
Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide
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As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.