The withering dream of a cheap American electric car

Firstly, Africa is a continent, not a sovereign nation or a monolithic politico-economic bloc. Cars aren't manufactured in every country in Asia, but primarily East and Southeast Asia. Asia proper extends from Anatolia to the Bering Strait, where many countries in between have no automobile industry whether domestic or foreign.

Secondly, there are plenty of reasons to avoid doing business in the many African countries, not the least of which are political instability, low literacy rates of the native populations, unfavorable and inconsistent economic policies (tariffs, board membership requirements, etc.), as well as inefficient and corrupt bureaucracies. That last one can create legal issues for you if you run a business incorporated in the US.