There is a massive export market in Africa and the middle east for vehicles from North America, Europe, Japan, Australia, certainly other places as well. Most of the importing nations have far less restrictive (or any) restrictions on things like emissions and road-worthiness, and often have highly competitive local secondary markets. New vehicles are often much more expensive then they would be in western markets as well.

Sell any low-cost used 4x4 vehicle in North America and you are likely to at least be approached by somebody intending to ship it to West Africa. East Africa is serviced by huge japanese auction sites such as beforward (http://www.beforward.jp).

Ford and Toyota trucks are highly valued because they're the easiest to find spare parts for. High demand and low supply pretty quickly justifies the expense of shipping over a container and (maybe) paying import duties.

What here needs to be investigated?