2026 BYD Seal U 1.5 Boost
Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
Price: £29,250. Above the going rate: £4,167 (16%) over the AskCar estimate of £25,083, 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
- 7,602 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
- Black
- 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 7,602 miles on the clock, this 2026 BYD Seal U Boost has done roughly 6,000 more miles than a typical 2026 BYD Seal U. The AskCar estimate for this car is £25,083. It is priced at £29,250, which is £4,167 above that estimate. The AskCar estimate draws on 914 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 93 days ago. The seller is Busseys BYD Norwich, based in Norwich.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 28 July 2026, 93 days ago.
| Date observed | Asking price |
|---|---|
| 28 July 2026 | £29,250 |
| 29 July 2026 | £29,250 |
| 29 October 2026 | £29,250 |
Price and mileage comparison
Above the going rate: £4,167 (16%) over the AskCar estimate of £25,083.
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 6,000 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 7,602 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
44 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 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.