Botswana is on one of the main transit routes from the coast (Durban, Walvis Bay) and the South African industrial hub (Johannesburg) so we get lots of interesting stuff passing through for domestic consumption and in transit to the north (Zambia, Democratic Republic of Congo, even Tanzania).
Here are some terribly exciting pictures of big things (and a few normal sized trucks) seen on the roads of Botswana:
Transformers
