Our verdict

The BYD Sealion is a large SUV with a kerb weight of 2.2 tonnes and a 82.5 kWh battery, which makes its sustainability score a creditable result for a vehicle of this type. It convinces with reasonable consumption values and well balanced electric powertrain.

  • The Sealion 7 eliminates exhaust emissions completely and gains points for limiting tyre abrasion through smooth acceleration, but is limited by its high mass and rear toe angle. It recovers brake energy very efficiently and thus minimizes brake abrasion. Some points are lost due to pollutant LCA for production and energy supply.
  • The consumption values measured in lab are 19.9–31.3 kWh/100 km depending on the conditions. The Cold Winter tests performance is good and the real-world mixed drive used 21.45 kWh/100 km. The total life cycle primary energy demand is calculated at 82.4 kWh/100 km, including all LCA phases.
  • The electric car emits no direct GHGs and production and energy supply dominate its climate impact. The total calculated LCA greenhouse gas emissions sum up to 163.5 g CO2‑eq./km, earning the Sealion a score of 7.2/10 in the GHG part of the assessment.
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8.4 10 Clean Air

Due to the fully electric powertrain the Sealion 7 doesn't have any exhaust emissions. It collects half of the available points for tyre abrasion reduction, which is supported by a smooth accelerator pedal response, but the relatively high mass, as well as the high toe angle on the rear axle, limit the score. The car shows a very high brake energy recuperation rate, which assures a good result in brake abrasion mitigation. Due to the mass and battery size, the vehicle loses some assessment points in the additional LCA evaluation, which considers production, energy supply, maintenance and end-of-life treatment.

Exhaust emissions

good

10.0 10

good

10.010
NMHC NOX NH3 CO PN PM Score
Legal test (WLTP) 8.08
Warm weather 10.010
Highway 10.010
Winter cold start 10.010
Winter warm start 10.010

good

10.010
NMHC NOX NH3 CO PN PM Score
Real-world mixed drive 10.010
Short city trip 10.010
Congestion 2.02
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
Non-exhaust emissions

adequate

6.4 10

marginal

2.96
Result Score
Influence of mass 0.43
Wheel alignment 0.51
Accelerator response 2.02

adequate

4.76
Result Score
Brake dust mitigation 0.04
Brake dust containment 0.06
Recuperative braking - warm test 4.76
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
Additional Life Cycle Assessment information

marginal

5.7 10
Pollutants
*Exhaust emissions are not contributing to the score in Additional Life Cycle Assessment information because they are scored in the Exhaust emissions section above.
6.5 10 Energy Efficiency

The legal test consumption value of 19.9 kWh/100 km suggests that the tested car is a rather large, heavy and luxurious vehicle. With 21.6 kWh/100 km in the Warm weather laboratory test, as well as 31.3 kWh/100 km in the dynamic high speed Highway Test, the Sealion shows typical values and does not impress. However, its consumption in the Cold Winter tests is obviously the result of efficient thermal management and componentry, which ensures high comfort for a modest energy increase. The real-world mixed drive On-road test needed 21.45 kWh/100 km, while 15.2 kWh/100 km was sufficient for the short urban trip. All the stated figures include the efficiency of the charging/discharging processes. This index's score is mainly based on the total primary energy demand, which is calculated as the sum of 25.6 kWh/100 km direct propulsion energy consumption and about 56.8 kWh/100 km from the other LCA phases.

Energy demand

adequate

6.8 10

adequate

8.910
Legal test (WLTP)
19.9 kWh/100 km
Warm weather
21.6 kWh/100 km
Highway
31.3 kWh/100 km
Winter cold start
29.5 kWh/100 km
Winter warm start
25.3 kWh/100 km

adequate

7.210
Total LCA energy consumption
*Direct propulsion energy share is not shown, it is included in ‘Fuel/energy supply’
Energy source share in total LCA consumption
Rolling resistance

weak

1.2 10
  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.
7.2 10 Greenhouse Gases

As an electric car, the Sealion 7 does not emit any greenhouse gases directly. Its climate impact comes from the processes of production and distribution, energy supply, maintenance and end-of-life treatment. The total life cycle greenhouse gas emissions are calculated to 163.5 g CO2‑eq./km, of which 115 are contributed by the vehicle production in China.

Exhaust GHG emissions

good

10.0 10
In laboratory
Legal test (WLTP)
0 g CO₂-eq./km
Warm weather
0 g CO₂-eq./km
Highway
0 g CO₂-eq./km
Winter cold start
0 g CO₂-eq./km
Winter warm start
0 g CO₂-eq./km
Additional Life Cycle Assessment information

weak

2.8 10
Total LCA GHG Emissions
*The scoring does not consider the direct exhaust GHG emissions at the tailpipe, because they are scored separately in ‘Exhaust GHG emissions’ above.

Vehicle Life Cycle Average Emissions 39 (+/-)
(Best 34 | Worst 42)

  • good
  • adequate
  • marginal
  • weak
  • poor
  • n.a.

Specifications

  • Vehicle class Large SUV
  • System power/torque 230 kW/380 Nm
  • Engine size n.a.
  • Declared consumption 19.9 kWh/100 km
  • Declared driving range Overall 482 km City 630.6 km
  • Declared CO2 n.a.
  • Declared battery capacity Usable (net) 82.6 kWh Installed (gross) 82.6 kWh
  • Mass 2,225 kg
  • Heating concept Waste heat & PTC heater & heat pump
  • Tyres 235/50 255/45 R19
  • Emissions class AX
  • Tested car LGXCH4CD8S201XXXX
  • Publication date 12 2025
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Driving Experience

Consumption & Range

adequate

Estimated actual consumption What consumption can be expected in real world conditions?

adequate

Conditions Urban Rural Highway Mixed
Warm weather
21.5
24.2
25.4
23.2
kWh/100 km
Cold winter
26.6
24.2
31.1
27.4
kWh/100 km
Driving range What driving range can be expected in real world conditions?

good

Conditions Urban Rural Highway Mixed
Warm weather 431 382 365 400
km
Cold winter 348 383 298 337
km
Accuracy of display Is the consumption figure on the display correct?

poor

  • good
  • adequate
  • poor
  • n.a.
Cold Winter Performance

adequate

Driving range benefit of pre-warming How much further can you drive in winter, if the car is pre-warmed?

adequate

Type Driving Range Benefit Result
Urban trip + 121km
Mixed trip + 53km
Cabin heating Does the vehicle get warm quickly in winter?

good

Type Front Rear
Head area
269s
415s
Footwell
264s
Replace contents of this cell. The rear footwell area left reached the temperature in 284 seconds and in the right in 248 seconds.
  • good
  • adequate
  • poor
  • n.a.
Additional heating functions What functions can be used to improve heating comfort?
Y/N Fitment
Heat pump Standard
Seat heating front Standard
Seat heating rear Standard
Steering wheel heating Standard
Scheduled pre-heating of seats Standard
Scheduled steering wheel pre-heating Standard
Scheduled cabin air pre-heating Standard
Smart cabin heating management Standard
Cabin thermal insulation How well does the cabin maintain its temperature?

adequate

Good Adequate Poor
Charging Capability

adequate

Battery pre-conditioning Does the vehicle have the ability to optimize the battery temperature for fast charging?
Manual Automatic
Battery pre-conditioning
Fast charging

poor

Charging time How quickly can the battery charge?
Recharged range gain per charging time How long do you need to fast charge to drive a certain distance?
Charging power How quickly does energy flow into the battery, depending on its charge level?
Home charging efficiency Is charging at home efficiently utilizing the energy withdrawn from the grid?

adequate

Home charging efficiency
85%
Maximum home charging power 11 kW Standard
Bidirectional charging How capable is the vehicle of supplying energy from its battery to other devices or systems?

adequate

Power output
3.3 kW
Fitment: Standard
Compatibility
Vehicle-to-Load (V2L) The inlet or the interior socket can provide AC power through an electrical domestic socket.
Vehicle-to-Household (V2H) The vehicle can provide power to a household through a charger.
Vehicle-to-Grid (V2G) The vehicle can return power to the grid.
Grid Integration
Basic No integration (just a socket for a stand-alone load). No scheduling option. Very basic visualisation.
Limited Energy management system through the vehicle app (timers availability and power monitoring). Dedicated interface in the car, with mobile app monitoring.
Advanced Advanced: Advanced settings available such as tariff and consumption control, linked to distributor energy prices. Advanced real time energy flow visualization. AI powered suggestions for optimal usage.

Green NCAP comments

The sealion 7 is rated as 'adequate' in all three sections of the Driving Experience assessment, demonstrating a good balance between consumption, range and functionalities.

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