2026 BYD Seal U 1.5 Boost

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: 4,179 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

At 4,179 miles, this 2026 BYD Seal U Boost has covered about 2,200 more miles than other 2026 BYD Seal U cars. The dealer is asking £22,990, which is £2,849 below the AskCar estimate of £25,839. 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 54 days ago. Its asking price has since fallen by £3,000. The seller is Swansway Garages BYD Crewe, based in Crewe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Good value: £2,849 (11%) under the AskCar estimate of £25,839.

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 54 days.

Price history

AskCar first saw this advert on 11 September 2026 at £25,990. Its asking price is now £22,990, £3,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 11 September 2026: £25,990
• 21 September 2026: £24,590
• 28 September 2026: £24,490
• 21 October 2026: £23,990
• 4 November 2026: £22,990

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,200 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, blue. Mileage: 4,354 miles. Price: £24,900, £1,910 more than this car. Dealer: John Clark BYD Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-3bec3c53e8db
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 3,993 miles. Price: £28,499, £5,509 more than this car. Dealer: Gates Of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-806eb7391e8a
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 4,384 miles. Price: £25,295, £2,305 more than this car. Dealer: Pentagon BYD Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-7443d75a45c8

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 3,065 miles. Price: £25,290, £2,300 more than this car. Dealer: Swansway Garages BYD Crewe in Crewe. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-56fe7205020d