Extended Rear Facing Seat for Zafira

[brachy]

DS (13months) is rapidly approaching the point where he can no longer sit rear facing in his Britax First Class si seat- yes he is a chunk! DD rear faced until way past 2yrs in the same same seat!
We don't want to turn him forward facing yet so need a new seat.
We're looking at the TWE- mainly because I like the exended harnessing to 25kg forward facing. DD, now aged nearly 6 is still harnessed in her Elite (not the Two Way). How is the TWE in a Zafira? Are they tethered in? Does this mean we cannot move the front seats if it is tethered in?
Many thanks.

hi, yes i have had my twe in my friends zafira. we had it in rear passenger and it was ok with boot seats up behind it and there was enough room in front seat. the tethers were around the back of front seat.

:)