dude if there was anything more economical than it is this. Imagine being powered entirely by energy transfered wirelessly... The hybrid car uses hydrogen powered engine and then enters a laser highway possibly on a road that has a much friction as the maglev trains incur. Anyways I just suggest this as a possibility. Another possibility is to not have cars at all...but rather roads that move themselves... And a moving device translates the person and what he has to catch up to the motion of the highway. Or maybe the highway will be made of many strips that will recognize when someone will step on them and thus slow down to allow the person to step on the highway...meanwhile the rest of the highway moves along...and the currently moving objects are moved around you to avoid collision. Once again just a suggestion. Who needs a car really? This life got more to offer, different possibilities.