It remains to be seen of any carmaker can upsize its EV (or Volt-like extended-range electric vehicle) to the larger family-size sedan. (Nissan???s Mark Perry told me that all carmakers, including Nissan, will need to go to a plug-in hybrid, rather than a pure EV, to get into the mid-size category.) In a nutshell, the Honda Plug-in Hybrid uses Toyota???s small-battery blended PHEV approach, while