Hi!
First of all, I know you're short in time and want to see as much as possible, but the self-drive trips suggested by Cardbox are very good - but minimal in terms on time! So trying to squeeze in a 16days tour AND chobe and Okavango is a bit too much. Again, you want to see as much as possible, but if you end up driving, being tired, and not spending time in the places you will be disapointed. What if there's a problem on the road? then you're whole itinerary is messed up. Do not overestimate distances in NAmibia! Roads are often gravel - in Botswana you will encoutered tarred road, but there's so much people/animals/pot-wholes, you won'T go as fast as you would have thought. Trying to rush to some place, driving a lot to be able to do that, getting tired, is the perfect equation to have an accident with some random donkey on the road. (I tried to rush in my last trip to get to namibia from Jo'burg. We ended up having a car accident. stupid from us!!)
80km/h is highly ambitious for gravel road in a sedan car in Namibia (you will encouter gravel roads mainly to get to Sossusvlei). I would say 50km/h for gravel road, and around 100km/h for tared road (even if the speed limit is 120km/h, you always enter in the villages and have to go slower)
You don'T need a 4x4 for Sossuvlei, Etosha, but for some part of the Skeleton coast and Damaraland you will (search other post on this forum about this...
Flying out of Botswana will indeed save you some time - but the one-way drop charge for the rental car might be high!
It nearly take you a full days drive from Etosha to Kasane in Botswana Nearly? I don't agree with that! It would be two very long day of driving minimum if you go through Caprivi strip. The Delta is big and beautiful, but in terms of wildlife viewing, Etosha and Chobe are way mush better. Experiencing the Delta in a mokoro is very nice, and I would recommend it but you don't get to see that many animals, and not as close, since you're on foot or in a mokoro (you stay further away!!!)
I would also skip Swakopmund in Namibia, but that's just personal preference. If it's to see the dunes, Sossuvlei is good (better?). I personnaly really liked Luderitz, but it's a littel bit out of your way... You could concentrate on Sossusvlei, Etosha and Maun (the delta). From Maun to Kasane it's a long day of driving too.
hope I was of some help!!
Edited by: catherine_couturier