2026 BYD Seal 6 1.5 Boost

Overview

• Make: BYD
• Model: Seal 6
• Trim: Boost
• Version: 1.5 DM-i Boost CVT FWD Euro 6 5dr e (181 bhp)
• Year: 2026
• Mileage: 10,421 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Estate, 5 doors, 5 seats
• Engine: 1.5 litres, 181 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal 6 Boost has covered 10,421 miles, around 9,700 more miles than is typical for its age. Priced at £21,000, it is advertised £355 below the AskCar estimate of £21,355. To work out the AskCar estimate, we analyse UK dealer adverts for 200 BYD Seal 6 cars across different ages and specifications. We first recorded this advert 8 days ago, and its asking price has since fallen by £600. The seller is Marshall BYD Northampton, based in Northampton. 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: £355 (1%) under the AskCar estimate of £21,355.

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 200 priced BYD Seal 6 adverts across different ages and specifications, as of 4 November 2026.

A 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,900: the median of the 113 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2026 BYD Seal 6 has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 27 October 2026 at £21,600. Its asking price is now £21,000, £600 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 27 October 2026: £21,600
• 29 October 2026: £21,000

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 9,700 miles higher than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

65 other 2026 BYD Seal 6 Boost 1.5 plug-in hybrid automatic estates are for sale at UK dealers, from £19,990 to £29,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 9,999 miles. Price: £22,495, £1,495 more than this car. Dealer: Pentagon Warrington in Warrington. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-496a90abb7ff
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, beige. Mileage: 9,999 miles. Price: £24,994, £3,994 more than this car. Dealer: Pentagon Lincoln Used Car Centre in Lincoln. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-234b1e95019d
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white. Mileage: 11,111 miles. Price: £22,026, £1,026 more than this car. Dealer: LSH Auto BYD Manchester in Stockport. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-f67dd6776886

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, blue, 29 miles from this car. Mileage: 3,779 miles. Price: £23,895, £2,895 more than this car. Dealer: Perrys Aylesbury in Aylesbury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-094dc8b5cd93