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: 15 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

The advertised mileage for this 2026 BYD Seal 6 Boost is 15 miles. Priced at £21,500, it is advertised £3,102 below the AskCar estimate of £24,602. The AskCar estimate draws on 200 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 119 days ago. Its asking price has since fallen by £5,690. The seller is Marshall BYD Ashford, based in Ashford. 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

Good value: £3,102 (12%) under the AskCar estimate of £24,602.

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 119 days.

Price history

AskCar first saw this advert on 8 July 2026 at £27,190. Its asking price is now £21,500, £5,690 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 8 July 2026: £27,190
• 23 July 2026: £27,000
• 25 July 2026: £25,900
• 8 August 2026: £25,700
• 14 August 2026: £25,600
• 18 August 2026: £25,400
• 21 August 2026: £25,300
• 28 August 2026: £25,100
• 2 September 2026: £24,800
• 12 September 2026: £24,300
• 25 September 2026: £23,000
• 2 October 2026: £22,500
• 8 October 2026: £22,300
• 17 October 2026: £21,800
• 29 October 2026: £21,500

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 700 miles lower 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, white. Mileage: 15 miles. Price: £21,500, the same price as this car. Dealer: Marshall BYD Ashford in Ashford. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-a0dd2d34f780
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black. Mileage: 15 miles. Price: £22,490, £990 more than this car. Dealer: Greenhous Telford in Telford. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-a3d566559268
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, gold. Mileage: 12 miles. Price: £24,000, £2,500 more than this car. Dealer: Peoples Falkirk in Falkirk. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-541de31a27ef

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid estate, black, under a mile from this car. Mileage: 2,533 miles. Price: £22,299, £799 more than this car. Dealer: cinch in Ashford. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-24e684e82084