Yep, don't underestimate the versatility of the 4 Seater, especially the older ones. With the seat cushions in place I can easily get 4 x 70 litre cargo bags in, plus another two if I use the rack. Weekly shop is no problem. Take the foam seats out, and I've had a full weeks worth of camping/walking gear in.
I think had I gone the 2 seat route I'd have used her far less.