2026 BYD Seal U 1.5 Boost
Price: £23,500. Fair price: £671 (2%) under the AskCar estimate of £24,171, 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: 2026
- Mileage: 11,829 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: Black
- CO2: 20 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 11,829 miles on the clock, this 2026 BYD Seal U Boost has done roughly 9,800 more miles than a typical 2026 BYD Seal U. The dealer is asking £23,500, which is £671 below the AskCar estimate of £24,171. To work out the AskCar estimate, we analyse UK dealer adverts for 853 BYD Seal U cars across different ages and specifications. We first saw this car advertised 18 days ago. Its asking price has since fallen by £300. The seller is Marshall BYD Canterbury, based in Canterbury. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £671 (2%) under the AskCar estimate of £24,171.
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 2026 BYD Seal U with the 1.5 plug-in hybrid engine is typically advertised at £27,000: the median of the 366 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2026 BYD Seal U has been on sale for at least 18 days.
Price history
AskCar first saw this advert on 17 October 2026 at £23,800. Its asking price is now £23,500, £300 less. The latest price cut was seen on 24 October 2026.
Price changes recorded:
- 17 October 2026: £23,800
- 24 October 2026: £23,500
Mileage and MOT
MOT: first test not yet due.
Advertised mileage is about 9,800 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.
Similar cars
254 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,742 to £35,595, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 11,876 miles. Price: £23,400, £100 less than this car. Dealer: Marshall BYD St Neots in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-89816dbe1acb
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 11,882 miles. Price: £23,400, £100 less than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-b4a9f1b7eebc
- 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 11,776 miles. Price: £23,799, £299 more than this car. Dealer: Vertu BYD Morpeth in Morpeth. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-e20574c73ce6
- The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, under a mile from this car. Mileage: 12,831 miles. Price: £23,300, £200 less than this car. Dealer: Marshall BYD Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-16c965f94019
Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide
More like this
- Used BYD Seal U Boost prices
- Used BYD Seal U for sale under £30,000
- Used BYD Seal U for sale near Canterbury
Photos
34 photos of this car are 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.