Here’s how we can best describe the differences between hybrids, PHEVs and electric cars. Hybrid Vehicles. A hybrid runs via an internal combustion engine and an electric motor (sometimes multiple motors). Instead of plugging a hybrid in for charging, the battery inside the vehicle is charged through regenerative braking and by the engine itself. Plug-In Hybrid Electric Vehicles. While hybrids run off gasoline, PHEVs run primarily off an electric battery. Once the battery loses power, the engine takes over. As the name suggests, plug-in hybrids do require charging. Electric Vehicles. When you opt for a 100% EV, you’re getting a vehicle that can only be powered by an electric motor, which receives power from a large battery pack. Similar to PHEVs, electric cars must be charged regularly.