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: 13,253 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: Grey
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 13,253 miles, this 2026 BYD Seal U Boost has covered about 11,300 more miles than other 2026 BYD Seal U cars. Its asking price of £23,555 is £416 below the AskCar estimate of £23,971. The AskCar estimate draws on 853 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 21 days ago. Its asking price has since fallen by £952. The seller is Vertu BYD Gloucester, based in Gloucester. 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

Fair price: £416 (1%) under the AskCar estimate of £23,971.

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 21 days.

Price history

AskCar first saw this advert on 14 October 2026 at £24,507. Its asking price is now £23,555, £952 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 14 October 2026: £24,507
• 23 October 2026: £23,555

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 11,300 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: 12,916 miles. Price: £23,300, £255 less than this car. Dealer: Marshall BYD St Neots in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-7c1a2f1810e0
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 13,638 miles. Price: £23,299, £256 less than this car. Dealer: cinch in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-9114fdea109b
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 12,843 miles. Price: £22,742, £813 less than this car. Dealer: D. M. Keith in Doncaster. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ef42b93fcaf4

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue, under a mile from this car. Mileage: 11,606 miles. Price: £23,716, £161 more than this car. Dealer: Vertu BYD Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ce2d7d6c8894