2025 BYD Seal U 1.5 Boost
Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
Price: £25,499. Fair price: £776 (3%) over the AskCar estimate of £24,723, our expected asking price for this car from its model, age, mileage and specification, drawing on 919 priced BYD Seal U adverts on AskCar as of 30 October 2026.
AskCar lists 927 used BYD Seal U from 155 UK dealerships, as of 30 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
- 6,036 miles
- Year
- 2025
- 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 6,036 miles on the clock, this 2025 BYD Seal U Boost has done roughly 2,200 fewer miles than a typical 2025 BYD Seal U. The dealer is asking £25,499, which is £776 above the AskCar estimate of £24,723. To work out the AskCar estimate, we analyse UK dealer adverts for 919 BYD Seal U cars across different ages and specifications. It first appeared in our advert records today. The seller is Gates Of Stevenage, based in Stevenage.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £25,499 |
Price and mileage comparison
Fair price: £776 (3%) over the AskCar estimate of £24,723.
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 919 priced BYD Seal U adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 2,200 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.
MOT
MOT: first test not yet due.
Other matching cars
103 other 2025 BYD Seal U Boost automatic plug-in hybrids (petrol) are for sale at UK dealers from £14,999 to £34,295, as of 30 October 2026.
The 5 cheapest:
- 2025 BYD Seal U. Price: £14,999. Mileage: 11,775 miles. Dealer: Drivex Motors Group in London. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-6a6bb00ff879
- 2025 BYD Seal U. Price: £22,399. Mileage: 10,078 miles. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-4347e13c805d
- 2025 BYD Seal U. Price: £22,490. Mileage: 16,257 miles. Dealer: Chippenham Motor Company in Chippenham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-e89c69ed83d5
- 2025 BYD Seal U. Price: £22,495. Mileage: 14,340 miles. Dealer: EMG Motor Group Kings Lynn BYD in King's Lynn. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-b1692778f0f8
- 2025 BYD Seal U. Price: £22,590. Mileage: 9,607 miles. Dealer: Evans Halshaw BYD Rotherham in Rotherham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-8fe5dd9a036b
The 103 matching cars have covered 5 to 18,698 miles, compared with 6,036 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 · 2025 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 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.