Check out this new mod you can do to your Prius for a measly $10,000 (installation included)!!!! This new plug-in kit for your Prius gives your the ability to get up to 100 mpg!
Looks like it uses your spare tire area?
Interesting numbers regardless. Definitely a bit pricey and I'm not sure what the math looks like on recouping the cost but it's a great option for those that drives quite a bit on the road.
Source: HymotionAccording to the Electric Power Research Institute (EPRI), half of the cars in the U.S. are driven just 25 miles a day or less. Hymotion's L5 Plug-in Conversion Modules enable your vehicle to achieve outstanding fuel economy by electrically supplementing the hybrid drive train for up to 40 miles. When the Hymotion L5 module is fully depleted, your vehicle will function as a standard hybrid until you recharge.