This is a good example where import controls are obviously silly. Is Bolivia (pop 11M) going to have a domestic car industry? Does it make any sense to ship the raw materials for building a car 4000 meters up in the Andes instead of just shipping the car?
I don't know much about Bolivia, but as I understand it, Bolivia's lack of domestic industry isn't due to its population or its lack of natural resources; it's caused by political factors such as profound social division, a resulting nonstop social struggle (including a socialist revolution in 01952), foreign subversion by agents like Che Guevara and the US CIA and DEA, a history of poverty rooted in Spanish colonialism and apartheid, counterproductive economic policies like the auto import tariff (directed toward the comprehensively failed experiment of import-substitution industrialization), and insufficient capitalism in general. Historically it also suffered from widespread illiteracy, but that is no longer a problem. Like, for example, Montana, it almost totally lacks research universities.
Normally I hesitate to attribute poverty and oppression to conspiracy theories like "CIA subversion", but in the case of Bolivia, the evidence seems indisputable that the CIA were key supporters of the ultra-right-wing military dictatorship in the 01960s and the 01971 coup, as well as operating their own military operations independently inside Bolivia.
The economic situation improved significantly during the Morales years.
Hopefully lccarrasco or someone can correct me if I got this wrong.
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* As far as I know, they aren't currently smelting at the mines, but then again, they aren't currently mining iron either.