2026 BYD Seal U

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

£25,250

Fair price: within 8% of the typical £24,265 for this model, age and mileage, drawing on 901 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: 10,563 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

This 2026 BYD Seal U Boost has covered 10,563 miles, around 10,500 more than typical for its age. Its asking price of £25,250 is £985 above our estimate of £24,265. To estimate its market asking price, we analyse UK dealer adverts for 901 BYD Seal U cars across different ages and specifications. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,200. The seller is Donnelly Motorstore Dungannon, based in Dungannon.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 11 September 2026, 39 days ago. Advert duration calculated on 20 October 2026. Net asking-price reduction: £1,200 from the first recorded £26,450. 1 price reduction recorded, the latest observed on 17 October 2026.

Recorded asking prices
Date observed	Asking price
11 September 2026	£26,450
17 October 2026	£25,250
19 October 2026	£25,250

Price and mileage comparison

Estimated market asking price: £24,265. The asking price is £985 above 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 901 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 10,500 miles higher than typical for a 2026 BYD Seal U.

MOT

MOT no details held by dvla.

272 other cars with the same year, trim, gearbox and fuel are for sale from £22,995 to £34,295.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£22,995	14,485 miles
£23,377	12,765 miles
£23,399	9,270 miles
£23,400	12,831 miles
£23,400	12,910 miles

These cars have covered 1–14,485 miles, compared with 10,563 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

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Dealer

Donnelly Motorstore Dungannon, Dungannon. Across the dealer network: 32 branches, 1,247 cars for sale.

Dealer postcode: BT70 1RX.

Dealer opening hours

Monday: 08:45-17:30
Tuesday: 08:45-17:30
Wednesday: 08:45-17:30
Thursday: 08:45-19:30
Friday: 08:45-17:30
Saturday: 09:00-13:00
Sunday: None