2026 BYD Seal 6 1.5 Boost

Overview

• Make: BYD
• Model: Seal 6
• Trim: Boost
• Version: 1.5 10kWh Boost CVT FWD Euro 6 (s/s) 4dr (180 bhp)
• Year: 2026
• Mileage: 6,000 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 180 bhp
• Gearbox: Automatic (CVT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 52 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BYD Seal 6 Boost is advertised with 6,000 miles, approximately 5,100 above the typical mileage for its age. Priced at £20,990, it is advertised £1,632 below the AskCar estimate of £22,622. The AskCar estimate draws on 197 BYD Seal 6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £7,000. The seller is Snows BYD Southampton, based in Southampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,632 (7%) under the AskCar estimate of £22,622.

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 197 priced BYD Seal 6 adverts across different ages and specifications, as of 5 November 2026.

A 2026 BYD Seal 6 with the 1.5 plug-in hybrid engine is typically advertised at £23,800: the median of the 110 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2026 BYD Seal 6 has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £27,990. Its asking price is now £20,990, £7,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 28 May 2026: £27,990
• 4 July 2026: £25,990
• 21 August 2026: £25,490
• 8 September 2026: £23,490
• 11 September 2026: £22,990
• 7 October 2026: £21,990
• 3 November 2026: £20,990

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 5,100 miles higher than the median mileage of a 2026 BYD Seal 6 on AskCar.

Similar cars

36 other 2026 BYD Seal 6 Boost 1.5 plug-in hybrid automatic saloons are for sale at UK dealers, from £19,800 to £33,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue. Mileage: 5,822 miles. Price: £22,795, £1,805 more than this car. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-08221fe69981
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, black. Mileage: 6,195 miles. Price: £21,500, £510 more than this car. Dealer: Evans Halshaw BYD Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-26d85dde5f8c
• 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, beige. Mileage: 6,500 miles. Price: £26,695, £5,705 more than this car. Dealer: Charles Hurst BYD Belfast in Belfast. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-2813524a3ea9

• The nearest: 2026 BYD Seal 6 Boost, 1.5 plug-in hybrid saloon, blue, 31 miles from this car. Mileage: 500 miles. Price: £22,990, £2,000 more than this car. Dealer: Snows BYD Chichester in Chichester. AskCar page: https://askcar.co.uk/car/byd-seal-6-2026-9e19367fbd91