2025 BYD Seal U 1.5 Boost
Price: £25,999. Fair price: £1,492 (6%) over the AskCar estimate of £24,507, our expected asking price for this car from its model, age, mileage and specification, drawing on 853 priced BYD Seal U adverts on AskCar as of 4 November 2026.
AskCar lists 877 used BYD Seal U from 161 UK dealerships, as of 4 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: 2025
- Mileage: 6,368 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: Blue
- CO2: 20 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2025 BYD Seal U Boost is 6,368 miles. Priced at £25,999, it is advertised £1,492 above the AskCar estimate of £24,507. The AskCar estimate uses UK dealer asking prices, including 853 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 6 days ago. The seller is Gates Of Stevenage, based in Stevenage. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £1,492 (6%) over the AskCar estimate of £24,507.
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 853 priced BYD Seal U adverts across different ages and specifications, as of 4 November 2026.
A 2025 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £24,600: the median of the 497 for sale on AskCar, as of 4 November 2026.
Time on sale
AskCar first saw this 2025 BYD Seal U advertised 6 days ago. About half of 2025 BYD Seal U cars are gone from sale within a month of being advertised: 605 of the 1,172 first advertised between 8 July 2026 and 1 October 2026.
Price history
AskCar first saw this advert on 29 October 2026 at £25,999. Its asking price has not changed.
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 1,800 miles lower than the median mileage of a 2025 BYD Seal U on AskCar.
Similar cars
102 other 2025 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,440 to £33,995, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 6,384 miles. Price: £23,799, £2,200 less than this car. Dealer: cinch in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-2181e374e819
- 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 6,327 miles. Price: £23,599, £2,400 less than this car. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-52d80c68c2c1
- 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 6,421 miles. Price: £24,995, £1,004 less than this car. Dealer: WJ King Vauxhall & BYD Bromley in Bromley. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-5b59d9f6a127
- The nearest: 2025 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 6,040 miles. Price: £25,499, £500 less than this car. Dealer: Gates Of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-bb8f87774655
Browse all BYD Seal U cars for sale · 2025 BYD Seal U price guide
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- Used BYD Seal U for sale near Stevenage
Photos
1 photo of this car is on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.