The Prius hybrid seemed such a usual for extra electric-only ability that aftermarket plug-in conversions have been available for at least five years. In detail, we had our previous-generation Prius changed back in 2008.
Now, at last, Toyota is offering its own, bona fide in-house plug-in version. We've also driven its precursor, Toyota's untried Prius plug-in back in 2010.
The plug-in version uses a lithium-ion battery in place of the Prius's usual nickel-metal hydride battery. The plug-in is intended to run as a pure electric for 11 miles and then relapse to usual Prius process, which combines electric and gas process.
But if you thought you'd be using electrical energy completely for 11 miles, you'd soon find out that's not the case. As soon as you depress the throttle farther than about a third of its travel, the inner combustion engine kicks in and you're using fuel.
So, dissimilar the Volt, the Prius plug-in is never an unequivocal EV, even for the part that's supposed to be gas-free. A button that displays HV-EV can lock out the EV part for when, say, you're on the highway and you required saving the EV driving for downtown.