If it is just laning and play days then you will find the Disco more practical and more comfortable.
Yea if you find getting stuck more pratical
If it's comfort yer wanting, get a disco. If yer happy to rough it and don't need to carry many people get a 90. I'd have a disco over a 90 due to lack of space for me lunch box, but I favour 110's over disco's.
I'm not too fussed about comfort, I spend most weekend's sat on top of a single seat 178bhp missile with rock hard race suspension, so a truck cab 90? what's the difference between 200tdi and 300 tdi?, would a td5 be worth looking at (if I could afford one) what about td5 disco?
cheers for the pointers!