Haven't read every single post, but see a few mentioning how much of a PITA rear facing would be...I think it would be easier than the forward facing if you have one of the types that just click into the base. Literally swing that bitch in and CLICK!
My son rides in the back of my Boss a few times a month and I hate ducking in to strap his ass in lol, but it's not bad. He's about 45" tall and has big feet, my wife who is 5' 8 can still sit comfortably in front seat when he's in the back.
The seats that hold the baby carrier are awesome at that stage for putting in and taking out as all of the work is done before you wven head outside.
It’s the way the carrier eats up space that is the bitch.
I remember on several occasions watching dudes put their newborn/real small mids in minivans and SUVs and such while putting my kids in the Shelby and thinking, nope, not a chance in hell I’ll ever own a minivan.