Plug-in Hybrid Electric Vehicles offer many of the advantages of Electric Vehicles, such as lower running costs, a quiet drive and zero emissions in the case of pure electric driving. Plug-in Hybrid Electric Vehicles also offer the flexibility of a conventional gasoline-powered engine for longer trips, without necessarily recharging the battery from an external source.  The combination of the gasoline-powered engine and the electric motor can also allow the vehicle to deliver a higher level of torque and acceleration than conventional Internal Combustion Engine vehicles.