I have a Citroen Grand Picasso and am thinking of a rear facing next stage car seat (9kg plus). As my car has pants-a-rama underfloor storage I think I am down to Brio Zento and Britax 2 way Elite (all other suggestions gratefully received - it can't have a support leg). Anyway, I looked at where I would have to put the tether straps and it is not obvious in this car so I am thinking maybe I can't use any rear-facing seat.... Does anyone have a Citroen Grand Picasso and if so, does any rear facing Group 1/2 car seat fit? Thanks.....