BYD Sealion 7 Valuation: 162 used car listings analysed

Market overviewPrices and data for March-2026: There are currently 162 used BYD Sealion 7 (model years 2025 - 2026) available. Prices range from £34,700 to £56,699, with a median price of £42,650. The most common configuration on the market is a combination of SUV, electric, and automatic, while the most popular trims include Design, Comfort. Market dynamics indicate that a vehicle sells in an average of 47 days, and 53.1% of listings have recently seen a price reduction (with discounts up to £10,105). Additionally, 34 vehicles are currently listed below market value. An indicator of durability: the inventory includes models with a mileage of up to 9,500 km (Source: 42 scanned sites).

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Showing 1 - 25 of 162 results

How much does the BYD Sealion 7 depreciate?

Used BYD Sealion 7

A used BYD Sealion 7 (2025) model loses about £985 per month in value.


Factors that affect the depreciation of a BYD Sealion 7:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a BYD Sealion 7. In addition to the monthly depreciation of £985, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.

How much does a used BYD Sealion 7 cost? Prices, ratings and depreciation by model year

How much does a used BYD Sealion 7 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2026 BYD Sealion 7

£37,495 - £56,952£48,9430 miles+£4059

2025 BYD Sealion 7

£34,200 - £51,325£40,4533,000 miles-£11,820103

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 14 March 2026

Comparison of BYD Sealion 7 variants and prices

Below you can compare prices and depreciation for the 2 most popular BYD Sealion 7 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of BYD Sealion 7 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

🏆 The most popular

BYD Sealion 7 Design

£35,399 - £50,515£42,4881,800 miles-£8,74071
💰 The budget choice

BYD Sealion 7 Comfort

£31,886 - £45,522£39,9790 miles-£4,44040

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 14 March 2026

Which variant should you choose?

💰 The budget choice

The Comfort is the cheapest entry point with an average price of £39,979.

🏆 The most popular

There are the most Design for sale right now (71), which gives you the most options to choose from.

📈 The best value

The Comfort has held its price stable with minimal loss in value over the past year (-£4,440).

BYD Sealion 7 (model year 2025) - Price development for the last 10 months and price projection for the next 6 months (May 2025 - August 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - May
£53,160
£50,000£56,320
Estimate
2025 - June
£48,160
£45,080£51,240
Estimate
2025 - July
£47,740
£44,180£51,320
Estimate
2025 - August
£45,320
£41,080£49,540
Estimate
2025 - September
£44,700
£41,080£48,320
Estimate
2025 - October
£44,260
£40,360£48,180
Estimate
2025 - November
£43,960
£39,740£48,180
Estimate
2025 - December
£43,400
£39,160£47,620
Estimate
2026 - January
£42,000
£37,960£46,040
Estimate
2026 - February
£41,340
£37,340£45,340
Estimate
2026 - April
£40,000
--
Forecast
2026 - May
£39,340
--
Forecast
2026 - June
£38,660
--
Forecast
2026 - July
£38,000
--
Forecast
2026 - August
£37,320
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 14 March 2026

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

-£11,820

Next 6 months

-£4,020

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Interested in finding a great deal on a used BYD Sealion 7?

Are you interested in buying a used ? The BYD Sealion 7 is a great pick. AutoUncle features 130 avalable cars to choose from sourced from various dealership websites and online marketplaces.

How much does a used BYD Sealion 7 go for?

Currently, the prices for a pre-owned BYD Sealion 7 start at £35,395 and go up to £56,595.

The used car price for a BYD Sealion 7 is dictated by five primary factors: year of production, engine capacity and performance, fuel economy, how many miles the car has travelled as well as trim level.

As an example, a newer model with fewer miles covered, or a high-end version boasting a potent engine, often fetches a top-tier price than an earlier version with less equipment and higher mileage.

Does the BYD Sealion 7 offer multiple trim lines?

The BYD Sealion 7 is offered in two separate equipment configurations:

  • BYD Sealion 7 Design: Right now you will find 63 cars for sale at an average price of £42,650)
  • [BYD Sealion 7 Comfort]https://www.autouncle.co.uk/en-gb/used-cars/BYD/Sealion%207/t-Comfort: 29 cars for sale at an average price of £41,015

As you considers the cost of a used BYD Sealion 7, it's fundamental to examine vehicles that have the same engines and features. If you don't, you might draw an inaccurate conclusion about which car to acquire.

What are the most popular fuel types for the BYD Sealion 7?

For the BYD Sealion 7, el is the most favored fuel.

Keep your driving habits in mind when choosing which fuel type to purchase. Do you generally drive in city conditions or on open highways and motorways? What is your average weekly mileage count?

Electric cars, plug-in hybrids and petrol are great for short distances. For long daily driving, electric cars are a strong choice if you can charge. If you have a daily commute over longer distances, a modern electric car can be a great choice - especially if you have access to charging at home or at work. Despite the rise of electric cars, diesel can still be useful for long journeys and lack of charging options. Take into account that several countries restrict high-emission diesel engines from their city zones.

More and more people are choosing electric cars over traditional ones

The surge in popularity of electric vehicles in the UK is associated with their green credentials, reduced fuel and upkeep costs, and governmental measures targeting carbon emission reduction, which encompass incentives for buyers of these cars. The embrace of electric vehicles like the BYD Sealion 7 is essential in the changeover to more green and sustainable transport solutions.

Pros of acquiring a second-hand electric car

There are plenty of advantages in acquiring a used electric vehicle. To name a few of the positive aspects:

  1. Lower purchase price: Second-owner electric vehicles are often more cost-effective than buying new. This more affordable rate opens up electric vehicle technology to a broader spectrum of consumers.

  2. Environmental impact: Opting for a pre-owned electric vehicle instead of a new model further diminishes ecological footprint. The production of a new car, specifically the battery, has a significant carbon footprint. Opting for a used car means you're not partaking in this ecological impact.

  3. Improved battery life: The unease over battery endurance in electric vehicles has subsided as technological developments have emerged. A good number of used electric cars still maintain a major portion of their battery's longevity, and the prices for battery replacement are becoming lower.

  4. Performance and technology: Many of the modern electric cars showcases standout performance and the very latest in technological innovation. Cars that aren't the latest models can still provide a sophisticated technological driving experience.

  5. Government incentives: Though not to the extent of new electric vehicles, used electric cars might still qualify for government subsidies, featuring reductions in vehicle tax and access to environmentally sensitive areas.

Does the BYD Sealion 7 have multiple body styles?

On AutoUncle, the BYD Sealion 7 is exclusively offered in the SUV body style. SUV stands for Sport Utility Vehicle. Out of all the cars on the market today, this is among the most popular, and with its versatile style and higher-than-usual ride height, it’s not hard to see why.

Which competing cars might be worth considering?

Several vehicles that are similar to the BYD Sealion 7 are available.

Alternative cars to the BYD Sealion 7

  • Ford Transit Custom
  • VW ID.3
  • Toyota Aygo X

The Ford Transit Custom is a strong alternative to the BYD Sealion 7. At present, there are a total of 4,152 Ford Transit Custom vehicles available for sale in the UK, featuring an average sales price of £14,999.

The next best alternative car is the VW ID.3 with 1,622 cars currently for sale with an average sales price of £15,350. Ranked third, the Toyota Aygo X is also a good alternative to the BYD Sealion 7, and you'll find 1,590 used Toyota Aygo X cars for an average price of £13,900 on AutoUncle.

All regions for BYD Sealion 7