OK
It tags on the back of my van at a hight of 2m20 (or maybe more)... I don't have a high top though...
I have the RV4 model 2m40 x 2m40 inside, good enough to set-up camp beds.
I also have the extra sides to close the awning area.
I transport it in my Thule roof box, the bag is 2m long and is quite heavy...
I recommend this as when it rains the bag (although waterproof) becomes rather soggy to handle.
it is not a backpacker's tent but a 4x4er / Vanner tent
We travel always minimum 5 people and as the van sleeps only 2 or at a pinch 3 we need the extra accommodation...
Ah and for wheelchair access it isn't to good as the tent door has a high side you have to step over about 20cm high (8 inches).
It is a great tent! quite expensive though... about 600-700 USD I think...