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: 9,308 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: Black
• CO2: 60 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal 6 Boost is advertised with 9,308 miles, approximately 8,300 above the typical mileage for its age. Its asking price of £21,400 is £52 below the AskCar estimate of £21,452. The AskCar estimate uses UK dealer asking prices, including 199 BYD Seal 6 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. 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 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £52 (under 1%) under the AskCar estimate of £21,452.

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 199 priced BYD Seal 6 adverts across different ages and specifications, as of 8 November 2026.

A 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,500: the median of the 111 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2026 BYD Seal 6 advertised today. About 1 in 10 of 2026 BYD Seal 6 cars are gone from sale within a month of being advertised: 11 of the 78 first advertised between 8 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 8 November 2026 at £21,400. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 8,300 miles higher than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

61 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 8 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, £1,095 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: £24,490, £3,090 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, blue. Mileage: 8,358 miles. Price: £22,448, £1,048 more than this car. Dealer: LSH Auto BYD Tamworth in Tamworth. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-00b7c4474c2c

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, white, under a mile from this car. Mileage: 10,421 miles. Price: £21,000, £400 less than this car. Dealer: Marshall BYD Northampton in Northampton. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-8592f5f8a3c8