Check out this promotional video of PCP Terra, they have built it on Mahindra Genio and it looks a perfect option for families. Of course fabricating something like this on your own would be tougher than taking a tempo traveler and modifying it, but it is worth checking out.
[video=youtube;ypKspSACyF8]http://www.youtube.com/watch?v=ypKspSACyF8[/video]
If I understand right, Mahindra Genio is similar to Tata 207 (pickup), right?
and it might not be more in length and width than a Dost....
So it is achievable...seems present caravan mfgrs are not fully exploiting the space.
In such a case, more can be done with proper space management in eicher & traveller....
If we see, this can accommodate 2 in front also, if there is an opening between driver cabin and caravan, it would be more good.
But to be honest, the presentation of this ad is a big dud...
rather than a person explaining the features in detail, they give usage of it in various cases and all characters explain the same thing.
I think people can figure out that based on the features.
Nevertheless, thanks to Yogesh, I never came across this anywhere in my past searches...