2026 BYD Seal U 1.5 Boost
Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
Price: £24,900. Fair price: £350 (1%) under the AskCar estimate of £25,250, our expected asking price for this car from its model, age, mileage and specification, drawing on 914 priced BYD Seal U adverts on AskCar as of 29 October 2026.
AskCar lists 923 used BYD Seal U from 156 UK dealerships, as of 29 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
- 6,958 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
This 2026 BYD Seal U Boost has covered 6,958 miles, around 5,300 more miles than is typical for its age. The AskCar estimate for this car is £25,250. It is priced at £24,900, which is £350 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 914 BYD Seal U cars across different ages and specifications. It first appeared in our advert records today. The seller is Marshall BYD Peterborough, based in Peterborough.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 29 October 2026.
| Date observed | Asking price |
|---|---|
| 29 October 2026 | £24,900 |
Price and mileage comparison
Fair price: £350 (1%) under the AskCar estimate of £25,250.
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 914 priced BYD Seal U adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 5,300 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.
MOT
MOT: first test not yet due.
Other matching cars
272 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 29 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: £23,250. Mileage: 12,348 miles. Dealer: Chippenham Motor Company in Chippenham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a1e852997fe0
- 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 272 matching cars have covered 1 to 15,698 miles, compared with 6,958 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
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Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.