I am late to this party, but this would be far too expensive for Mass Production. These are interesting and would be a great addition to show cars, and everyday usage but would be expensive raising prices of vehicles from lets say $10,000 to manufactre (sold for $20,000 probably) to 15,000$ causing a huge up for them making a car that can be $20,000 a $35,000 car due to the rarity and exclusiveness of this. This is a good idea but this will not be made for a few years, Just like Tesla cars are the "Green" alternative, they are not, Tesla uses oil and non renewable sources so much you may as well get a petrol car. As much as I appreciate new inventions, I feel they should stay in research for now because they are capable of more harm than good at the moment, Imagine this breaking down on a highway.