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: 5,812 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: Black
• CO2: 20 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 5,812 miles, this 2026 BYD Seal U Boost has covered about 2,900 more miles than other 2026 BYD Seal U cars. Priced at £24,495, it is advertised £877 below the AskCar estimate of £25,372. The AskCar estimate draws on 829 BYD Seal U adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 37 days ago. The seller is Pentagon Warrington, based in Warrington. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £877 (3%) under the AskCar estimate of £25,372.

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 829 priced BYD Seal U adverts across different ages and specifications, as of 7 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 363 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2026 BYD Seal U has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 1 October 2026 at £24,495. Its asking price has not changed.

Price changes recorded:

• 1 October 2026: £24,495
• 5 October 2026: £24,695
• 8 October 2026: £24,495
• 22 October 2026: £23,995
• 7 November 2026: £24,495

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 2,900 miles higher than the median mileage of a 2026 BYD Seal U on AskCar.

Similar cars

252 other 2026 BYD Seal U Boost 1.5 plug-in hybrid automatic SUVs are for sale at UK dealers, from £22,582 to £35,595, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, blue. Mileage: 6,000 miles. Price: £26,999, £2,504 more than this car. Dealer: SG Petch Durham in Durham. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-db59dfc43865
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 6,002 miles. Price: £23,700, £795 less than this car. Dealer: Pentagon Lincoln Used Car Centre in Lincoln. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-676b2ac17025
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 5,603 miles. Price: £24,400, £95 less than this car. Dealer: Marshall BYD Swindon in Swindon. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-97c8db18c73e

• The nearest: 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white, 17 miles from this car. Mileage: 5,443 miles. Price: £25,017, £522 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-7b5a65c560cb