Hey soul i can tell you as long as you dont get the high top in a delica you can get under car parks and in car washes etc..... Our last one wasnt a high top but this one is, and we havent measured to see if it will go through car wash or anything yet so jsut do it by hand!
As for comfort for long distance this definately has that! We travel 6 hrs at Christmas time for our hols and the kids never complain! Plenty of leg room for those long legged teenagers and i have even sat in the back just to make sure it is comfy for all! I highly recomend you to check out a few sites with them and even go to a car dealer that have them and go for a drive.
Our last one was a manual deisel and this one is a v6 auto petrol and both have been good for economy and both have the grunt to tow and speed if its needed!

Good luck i love doing the car hunting thing!!!