2026 BYD Seal U 1.5 Boost
Price: £23,400. Fair price: £831 (3%) under the AskCar estimate of £24,231, our expected asking price for this car from its model, age, mileage and specification, drawing on 850 priced BYD Seal U adverts on AskCar as of 2 November 2026.
AskCar lists 866 used BYD Seal U from 159 UK dealerships, as of 2 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: 11,772 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
This 2026 BYD Seal U Boost has covered 11,772 miles, around 9,300 more miles than is typical for its age. The AskCar estimate for this car is £24,231. It is priced at £23,400, which is £831 below that estimate. The AskCar estimate uses UK dealer asking prices, including 850 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 4 days ago. The seller is Marshall BYD St Neots, based in St. Neots. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £831 (3%) under the AskCar estimate of £24,231.
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
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: 140 of the 282 first advertised between 10 July 2026 and 29 September 2026.
Price history
AskCar first saw this advert on 29 October 2026 at £23,400. Its asking price has not changed.
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 9,300 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, white. Mileage: 11,776 miles. Price: £23,799, £399 more than this car. Dealer: Vertu BYD Morpeth in Morpeth. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e20574c73ce6
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 11,738 miles. Price: £23,499, £99 more than this car. Dealer: cinch in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-2eccdffc538a
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 11,829 miles. Price: £23,500, £100 more than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-db086333c21d
- The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 12,916 miles. Price: £23,300, £100 less than this car. Dealer: Marshall BYD St Neots in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-7c1a2f1810e0
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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- Used BYD Seal U for sale near St Neots
Photos
21 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.