These trucks are great and are seen all over the world with mostly Europeans driving them.
There is a history to them.
Back from the 70's onward companies like Encounter Overland were doing overland tours of Africa leaving London and ending in Capetown South Africa. The typical trip was more than 20 weeks carrying 20 passengers and it was mostly camping. Some companies are still doing these trips but on a more limited basis.
At that time most of the Overland tour companies use old English Bedford trucks which could carry about 20 people in the back and still all the camp gear and food etc. These were great trips and true adventure.
This kind of overland travel then became quite popular with many companies doing similar trips through South America, Asia and still Africa.
The market for these truck grew out of that early adventurous overland tour business. Now Sadly the globe is so torn with small vicious wars and religious conflict that these companies find it hard to do true transcontinental trips like the epic London - Kabul - Katmandu - India trek that was the gold standard of the business.
But I'd give my right arm for one of these great trucks and I know exactly where I'd take it....