How do you find the seat in terms of depth?
One of the major problems with our XP is that the seat and seat back are really deep. So much so that our daughter, 3, can easliy kick the back of the seats in our 'big' car. Meaning you have to bring the front passenger seat forward to give her leg room and to try and avoid getting footprints all over the back of the seat.
As she sits behind the passenger seat, I don't like being a passenger as I can't get the chair back as far as I'd like - and that's in a 5-series!
Is the Tobi any less 'deep'?
That's one of the reasons I like the look of the Jane Indy Plus. However, looking at the 'what car seat fits' thread again, it does look like though the seat is slimmer, the ISOFIX Fixings push the base way out and it may still be a problem with room behind passenger seat.
I think we're going to try our current seat (but I'm going to kneel in it when I fix it to get a better fit) and then look at what else is available when we have the time.