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: 11,606 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 11,606 miles, this 2026 BYD Seal U Boost has covered about 9,100 more miles than other 2026 BYD Seal U cars. The AskCar estimate for this car is £24,254. It is priced at £23,716, which is £538 below that estimate. The AskCar estimate uses UK dealer asking prices, including 850 BYD Seal U adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 19 days ago, the asking price has dropped by £1,073. 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 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £538 (2%) under the AskCar estimate of £24,254.

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 850 priced BYD Seal U adverts across different ages and specifications, as of 2 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 362 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2026 BYD Seal U has been on sale for at least 19 days.

Price history

AskCar first saw this advert on 14 October 2026 at £24,789. Its asking price is now £23,716, £1,073 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 14 October 2026: £24,789
• 23 October 2026: £23,716

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 9,100 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

246 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 2 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, black. Mileage: 11,607 miles. Price: £23,400, £316 less than this car. Dealer: Marshall BYD Ashford in Ashford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-80d102d62a9e
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 11,652 miles. Price: £23,400, £316 less than this car. Dealer: Marshall BYD Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a8137280bd7a
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 11,682 miles. Price: £23,400, £316 less than this car. Dealer: Marshall BYD St Neots in St Neots. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c6016f8984db

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey, under a mile from this car. Mileage: 13,253 miles. Price: £23,555, £161 less than this car. Dealer: Vertu BYD Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-d012612851d3