JNR
Elio Addict

At least one of my predictions may come true.
http://www.greencarreports.com/news...-vehicle-code-to-prevent-3-wheelers-like-elio
Welcome to Elio Owners! Join today, registration is easy!
You can register using your Google, Facebook, or Twitter account, just click here.This will have a major impact for Elio Motors.A quick search on the RIN number provided on that page leads you to here:
http://www.regulations.gov/#!documentDetail;D=DOT-OST-2015-0240-0001
From there you can download the DOT's "Department Regulatory Agenda; Semiannual Summary" from November 15, 2015. All it has is a copy of the same blurb you can get from the reginfo.gov site.
I think you're correct that it will not prevent three-wheel vehicles. It will, however, have a lot of effect on the Elio, should it be enacted prior to production. First thing that comes to mind: bumpers. As a motorcycle, it doesn't have to have them. As a car, it does. That would require a redesign of the front and back of the vehicle to incorporate federally mandated bumpers. How are they going to protect the outriggers? Anyone remember the original Prowler concept car? It didn't have a bumper in front. To meet federal regulations they had to add that bumper bar across the front for the production models. And of course they will need to add a front license plate. Those two things will do a number on their aerodynamics. Does the headlight and running light placement meet passenger car standards?
And while EM says they will do crash testing of the Elio, will they be doing the full suite of testing required by federal regulations? And are they planning on doing it in the manner required by those regulations? Can they even do the testing as required? I think someone was pointing out some design limitations of the Elio that mean they simply cannot do crash testing
And are they planning on filing all the requisite government paperwork? And are they planning on doing all the requisite fuel economy testing and emissions testing required for passenger vehicles? And what about filing all the appropriate paperwork for all of that? Doing all the paperwork to comply with federal regulations relating to a product can often be more expensive than building the product to begin with.
People aren't creating all these three-wheel vehicles just because they're cool, and it will magically enable some miracle efficiency. They're doing it to get around all the federal regulations associated with four-wheeled passenger vehicles. And if the feds pass laws that makes these three-wheeled vehicles meet all the same regulations as standard passenger cars, you can just kiss your $6,800, 84 MPG Elio goodbye.
Some of you people are too quick to poo-poo the impact this proposed legislation would have on EM, should it ever come to pass. Stop and think about it for a few seconds before scoffing at it. Will this proposal lead to changes in the regulations? I have no idea. If it does, it will probably take a few years for them argue it out, and that gives EM and other companies a window to get theirs to market before it goes into effect.
The bright side of this is what Sethodine says: CAFE credits! Provided that meeting passenger car regulations doesn't kill the fuel economy, they may be able to make a killing with that. Give them darn things away just so they can sell the CAFE credits. That would be one hell of a business model.