Toyota claims that their upcoming plug-in model Prius averages 65 mpg in real-world testing. That’s about 15 more than the 2010 Prius—the current leader in fuel efficiency.
https://jalopnik.com/2010-toyota-prius-live-in-the-vanilla-flesh-5129436
This bump is attributed to their new lithium ion battery, which can store more power than the nickel-metal hydride (NiMH) batteries found in traditional Prius models. The testing is ongoing, and there is no word on when we might actually be able to purchase the plug-in, but this is definitely encouraging news for anyone sick of lining the pockets of big oil companies. [Automotive News-subscription]