Analysis of Annual Electric Vehicle Miles Traveled (eVMT) in the United States...
Battery Electric Vehicles – Annual Miles Driven on Electricity
To estimate annual non-gasoline miles driven by battery electric vehicles (BEVs) the weighted average of 6,877 Nissan Leafs, Ford Focus Electrics and Honda Fit Electrics
...this data represents a sample of 43.5 million miles of on-road data for BEVs that never use gasoline.
Plug-in Hybrid Electric Vehicles - Annual Miles Driven on Electricity
To estimate annual eVMT by plug-in hybrid electric vehicles (PHEVs) the weighted average of 14,750 Chevrolet Volts, Ford C-max Energi, Honda Accord, and Toyota Prius PHEVs (Figure 1), must be calculated only using eVMT.
...data represents a sample of 40.5 million miles of on-road data...