I disagree, but not because I think you're wrong about the feasibility. I've no way to judge, but let's assume you're right: this car doesn't make sense either

I disagree, but not because I think you're wrong about the feasibility. I've no way to judge, but let's assume you're right: this car doesn't make sense either mechanically or economically. And the cost to produce it? A few hundred thousand dollars of printer, a few hundred thousand dollars of designers and engineers, a bit of plastic...call if 5 million to be generous. On the scale of a wealthy nation like the United States, 5M is not much money. But the (perhaps tiny) chance that this project leads to discovery or innovation in manufacturing, fuel efficiency, 3d printing, etc. is worth far more.