2026 BYD Seal U

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

£25,650

Fair price: within 8% of the typical £25,363 for this model, age and mileage, drawing on 907 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: 5,688 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 5,688 miles on the clock, this 2026 BYD Seal U Boost has done roughly 5,700 more miles than a typical 2026 BYD Seal U. At £25,650, it is advertised £287 above our estimated market asking price of £25,363. We use UK dealer asking prices, including 907 BYD Seal U listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 16 days ago, the asking price has dropped by £1,300. The seller is Donnelly Motorstore Dungannon, based in Dungannon.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 5 October 2026, 16 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £1,300 from the first recorded £26,950. 1 price reduction recorded, the latest observed on 17 October 2026.

Recorded asking prices
Date observed	Asking price
5 October 2026	£26,950
17 October 2026	£25,650
20 October 2026	£25,650

Price and mileage comparison

Estimated market asking price: £25,363. The asking price is £287 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 907 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 5,700 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
£23,299	9,270 miles
£23,377	12,765 miles
£23,394	12,843 miles
£23,400	12,831 miles

These cars have covered 1–14,485 miles, compared with 5,688 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, 1,248 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