i have one at the moment with a 250ltr tank and i do find what with about 3 poles inside,a bit of a squeeze every time you pull a pole out the others follow,also the poles sit over the passanger seat so there,s on chance of taking anyone out,the height inside is no good for me as i,m looking to get a trolly as well,,,go for something like an expert or scudo,,,thats what i,m after, and a 400ltr, the poles go over the top of your head,and it has 3 seats,,spot on