In electric vehicles, supercapacitors serve as buffers for high-power output, supporting the motor to output high power during acceleration and improving acceleration performance.

In hybrid vehicles, supercapacitors are combined with high-energy density lithium batteries to provide brief but powerful power output, helping the engine overcome increased loads.

In electric commercial trucks, supercapacitors provide additional power output to support the vehicle's starting and acceleration when towing heavy objects.

In high-performance electric sports cars, supercapacitors enhance dynamic performance and improve the vehicle's ability to respond quickly on the track.