Human: What is the difference between a hybrid car and a regular car? Assistant: 
The main difference between a hybrid car and a regular car is the powertrain. Hybrid cars use both a conventional internal combustion engine (ICE) as well as an electric motor that is powered by energy stored in a battery. This allows for more efficient fuel consumption and lower emissions than a traditional car with an ICE alone. As a result, hybrid cars usually have greater fuel economy and lower emissions than conventional cars.