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: 5,531 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

With 5,531 miles on the clock, this 2026 BYD Seal U Boost has done roughly 3,100 more miles than a typical 2026 BYD Seal U. The dealer is asking £25,998, which is £330 above the AskCar estimate of £25,668. To work out the AskCar estimate, we analyse UK dealer adverts for 850 BYD Seal U cars across different ages and specifications. We first saw this car advertised 46 days ago. Its asking price has since fallen by £500. The seller is Arnold Clark Edinburgh Seafield Kia / BYD, based in Edinburgh. 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: £330 (1%) over the AskCar estimate of £25,668.

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 46 days.

Price history

AskCar first saw this advert on 17 September 2026 at £26,498. Its asking price is now £25,998, £500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 17 September 2026: £26,498
• 29 October 2026: £25,998

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,100 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, white. Mileage: 5,536 miles. Price: £24,995, £1,003 less than this car. Dealer: Pentagon BYD Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-c0ea402aced7
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, grey. Mileage: 5,492 miles. Price: £24,399, £1,599 less than this car. Dealer: Halliwell Jones North Wales BYD in Conwy. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-0e01775087aa
• 2026 BYD Seal U Boost, 1.5 plug-in hybrid SUV, white. Mileage: 5,603 miles. Price: £24,400, £1,598 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, grey, under a mile from this car. Mileage: 5 miles. Price: £33,495, £7,497 more than this car. Dealer: Arnold Clark Edinburgh Seafield Kia / BYD in Edinburgh. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-11bff3b78e25