The clip often comes with any child seat you'll buy, if you don't still have yours. You'll need one for most any seat you wind up with.
The SVX is ahead of its time, as usual, by having tether anchor points in the rear headrests. This will be useful when the seat is forward facing.
I've put a few different seats in my SVX, and it worked out just fine. It's not the easiest car you'll ever load a kid into, but it's certainly doable.
My suggestion, put the kid on the passenger side, that way you can move the seat forward to acommodate the childseat if necessary. Some towels, etc.. may be needed to level out the rear seat bucket, but it'll work. Here's a pic of my then 5 month old in a rear facing seat in the seat of the SVX.
http://www.subarusvx.com/images/carp...nterior075.jpg
__________________
'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway!
'20 Honda Ridgeline
Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here:
http://www.x35design.com