Robert Q. Riley has finished designing and building his XR3 diesel hybrid prototype and now says, "Its your turn!". Yes, with a few simple tools and plans purchased from Mr. Riley, you too can (eventually) cruise the highways in your very own XR3.

Engineered to travel 40 miles with lithium ion batteries powering the back wheel before switching on the Kubota diesel engine that power the fronts, the XR3 is said by its maker to get 225 mpg.


Hit the link below for more...