Besides the direct bail-out Obama gave GM & Chrysler when they were about to go under, the conventional car companies depend on a huge government subsidy called externalities. Cars depend on a vast road system whose cost is mostly paid for via income and property taxes. Conventional cars also impose huge external costs via pollution and car insurance.
If the implicit subsidies to oil-burners were to stop at the same time as the subsidies to Tesla, Tesla would be partying in the streets.
It's like saying - Eat sh*t. Billions of flies can't be wrong.
Subsidies don't help anyone - except people getting them.
I think it's a good thing that these incentives exists so that (potentially) disruptive companies can be started.
But I assume private customers will make up for the expenses when the loans end.