2026 BYD Seal U

1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)

£23,800

Fair price: within 8% of the typical £24,374 for this model, age and mileage, drawing on 908 adverts of this make and model.

Overview

Make: BYD
Model: Seal U
Trim: BOOST
Version: 1.5 18.3kWh Boost CVT FWD Euro 6 (s/s) 5dr (214 bhp)
Mileage: 10,171 miles
Year: 2026
Fuel type: Petrol Plug-in Hybrid
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 10,171 miles on the clock, this 2026 BYD Seal U Boost has done roughly 9,800 more miles than a typical 2026 BYD Seal U. Our estimated market asking price is £24,374. This car is advertised at £23,800, which is £574 below that figure. The estimate uses 908 UK dealer adverts for the BYD Seal U, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 5 days ago. Its asking price has since fallen by £700. The seller is Marshall BYD Northampton, based in Northampton.

Stock data from 26 October 2026.

How we estimate prices and check cars

Price history

First seen on 22 October 2026, 5 days ago. Advert duration calculated on 27 October 2026. Net asking-price reduction: £700 from the first recorded £24,500. 2 price reductions recorded, the latest observed on 24 October 2026.

Recorded asking prices
Date observed	Asking price
22 October 2026	£24,500
23 October 2026	£24,400
24 October 2026	£23,800
26 October 2026	£23,800

Price and mileage comparison

Estimated market asking price: £24,374. The asking price is £574 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 908 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 9,800 miles higher than typical for a 2026 BYD Seal U.

MOT

MOT no details held by dvla.

260 other cars with the same year, trim, gearbox and fuel are for sale from £22,820 to £34,595.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£22,820	12,765 miles
£22,995	14,485 miles
£23,250	12,348 miles
£23,299	9,270 miles
£23,386	12,843 miles

These cars have covered 1–15,698 miles, compared with 10,171 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all BYD Seal U cars for sale · 2026 BYD Seal U price guide

Vehicle photos

AskCar lists 579,238 cars from 12,980 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.