BYD DOLPHIN SURF Boost electric FWD automatic
Sustainability rating
2026
96%
9.7
10
Clean Air
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 |
Non-exhaust emissions
good
9.3
10
good
5.56
| Result | Score | |
|---|---|---|
| Influence of mass | 2.53 | |
| Wheel alignment | 1.01 | |
| Accelerator response | 2.02 |
good
5.76
| Result | Score | |
|---|---|---|
| Brake dust mitigation | 0.04 | |
| Brake dust containment | 0.06 | |
| Recuperative braking - warm test | 5.76 |
Additional Life Cycle Assessment information
good
9.2
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.
9.5
10
Energy Efficiency
Energy demand
good
9.6
10
good
9.810
Legal test (WLTP)
15.6
kWh/100 km
Warm weather
15.7
kWh/100 km
Highway
27.9
kWh/100 km
Winter cold start
25.5
kWh/100 km
Winter warm start
21.2
kWh/100 km
good
9.810
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
adequate
7.0
10
9.9
10
Greenhouse Gases
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
adequate
6.7
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 27 (+/-)
(Best 24 | Worst 30)
Specifications
- Vehicle class Large Family Car
- System power/torque 65 kW/175 Nm
- Engine size n.a.
- Declared consumption 15.6 kWh/100 km
- Declared driving range Overall 322 km City 507 km
- Declared CO2 n.a.
- Declared battery capacity Usable (net) 43.2 kWh Installed (gross) 43.2 kWh
- Mass 1,386 kg
- Heating concept PTC heater
- Tyres 185/55R16 87V
- Emissions class AX
- Tested car LGXCE4CC4T202XXXX
- Publication date 10 2026
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Driving Experience
Consumption & Range
adequate
Estimated actual consumption
What consumption can be expected in real world conditions?
good
| Conditions | Urban | Rural | Highway | Mixed | |
|---|---|---|---|---|---|
| Warm weather |
15.9
|
16.0
|
19.3
|
16.8
|
kWh/100 km
|
| Cold winter |
22.5
|
19.3
|
27.7
|
23.4
|
kWh/100 km
|
Driving range
What driving range can be expected in real world conditions?
adequate
| Conditions | Urban | Rural | Highway | Mixed | |
|---|---|---|---|---|---|
| Warm weather | 308 | 306 | 254 | 292 |
km
|
| Cold winter | 218 | 254 | 177 | 210 |
km
|
Accuracy of display
Is the consumption figure on the display correct?
adequate
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 | + 89km | |
| Mixed trip | + 39km |
Cabin heating
Does the vehicle get warm quickly in winter?
adequate
| Type | Front | Rear |
|---|---|---|
| Head area |
416s
|
718s
|
| Footwell |
368s
|
The rear footwell area did not reach target temperature of 16°C during the test.
Additional heating functions
What functions can be used to improve heating comfort?
| Y/N | Fitment | |
|---|---|---|
| Heat pump | ||
| Seat heating front | Available for other versions | |
| Seat heating rear | ||
| Steering wheel heating | ||
| Scheduled pre-heating of seats | Available for other versions | |
| Scheduled steering wheel pre-heating | ||
| Scheduled cabin air pre-heating | Standard | |
| Smart cabin heating management |
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
adequate
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 |
87%
|
|
| Maximum home charging power | 11 kW |
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:
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
Most of the estimated real-world consumption values of the BYD DOLPHIN Surf are considered 'good' in both warm weather and cold winter scenarios. The 43 kWh battery is quite small, which limits the achievable driving ranges and clearly positions the car as a city vehicle and somewhat limits its suitability for longer distances. The consumption readings on the board computer display are generally adequate, but, as seen with some previously tested BYD vehicles, sometimes show higher deviations.
- Most of the estimated real-world consumption values of the BYD DOLPHIN Surf are considered 'good' in both warm weather and cold winter scenarios. The 43 kWh battery is quite small, which limits the achievable driving ranges and clearly positions the car as a city vehicle and somewhat limits its suitability for longer distances. The consumption readings on the board computer display are generally adequate, but, as seen with some previously tested BYD vehicles, sometimes show higher deviations.
- Drivers are advised to preheat the vehicle before cold winter trips, if possible. By doing so, an increased driving range can be achieved. The possible values are not high for the DOLPHIN Surf but are still a valuable contribution to a longer driving range in cold conditions. The tested car version only featured manual climate control and delivered acceptable cabin heat-up in cold winter conditions. However, the rear footwell did not reach the target temperature of 16°C during the test. The functions available to provide additional heating comfort are fairly limited for the tested equipment level. The cabin thermal insulation is evaluated as 'adequate'.
- The vehicle's home charging efficiency is slightly below standard with a measured grid-to-battery-output value of 86.8%. The fast DC charging is seen as adequate. Commendably, the car provides basic vehicle-to-load charging functionality, which allows it to supply 230 V to external devices with up to 3.3 kW – a function increasingly valued by consumers.
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Our verdict
The DOLPHIN Surf is a new fully electric supermini by BYD, which impresses with its sustainability scores. Euro NCAP awarded it 5 stars for safety in 2025. In Green NCAP it excelled with 5 stars and an average score of 96%.