2026 BYD Seal U 1.5 Boost
Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
Price: £23,499. Fair price: £709 (2%) under the AskCar estimate of £24,208, our expected asking price for this car from its model, age, mileage and specification, drawing on 896 priced BYD Seal U adverts on AskCar as of 31 October 2026.
AskCar lists 904 used BYD Seal U from 159 UK dealerships, as of 31 October 2026.
Overview
- Make
- BYD
- Model
- Seal U
- Trim
- Boost
- Version
- 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
- Mileage
- 11,738 miles
- Year
- 2026
- Fuel type
- Plug-in hybrid (petrol)
- Body type
- SUV
- Engine
- 1.5 L
- Gearbox
- Automatic
- Power
- 214 bhp
- Seats
- 5
- CO2
- 20 g/km
- Colour
- Grey
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- CVT
- Engine badge
- Boost
- Hybrid type
- Plug-in hybrid
- Emissions standard
- Euro 6
About this car
With 11,738 miles on the clock, this 2026 BYD Seal U Boost has done roughly 9,700 more miles than a typical 2026 BYD Seal U. Its asking price of £23,499 is £709 below the AskCar estimate of £24,208. The AskCar estimate draws on 896 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. The seller is cinch, based in Northampton.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £23,499 |
Price and mileage comparison
Fair price: £709 (2%) under the AskCar estimate of £24,208.
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 896 priced BYD Seal U adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 9,700 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.
MOT
MOT: first test not yet due.
Other matching cars
259 other 2026 BYD Seal U Boost automatic plug-in hybrids (petrol) are for sale at UK dealers from £22,742 to £35,595, as of 31 October 2026.
The 5 cheapest:
- 2026 BYD Seal U. Price: £22,742. Mileage: 12,765 miles. Dealer: D. M. Keith in Leeds. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-d56821b729f4
- 2026 BYD Seal U. Price: £22,995. Mileage: 14,485 miles. Dealer: Park's Motor Group Ford Stirling in Stirling. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-5bc712ea92d7
- 2026 BYD Seal U. Price: £23,200. Mileage: 13,638 miles. Dealer: Marshall BYD St Neots in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a6e7f999bf73
- 2026 BYD Seal U. Price: £23,295. Mileage: 8,129 miles. Dealer: Startin BYD (Redditch) in Redditch. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e6bc4392f6c6
- 2026 BYD Seal U. Price: £23,300. Mileage: 12,831 miles. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-16c965f94019
The 259 matching cars have covered 1 to 15,698 miles, compared with 11,738 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide
More like this
Photos
50 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.