The rear facing car seat for a 22 month old caught my eye too. I have never seen a rear facing car seat for a child that age. I have seven grandchildren and have seen my share of car seats.
All three of my kids rearfaced until three and a half years or so.
https://www.youtube.com/watch?v=Q8gU9zzCGA8
That's a video that is very convincing. It didn't take that for me, I just the manuals and the recommendations. It was further reinforced when a family I knew was involved in a fatal accident. One died, three were seriously injured. The young, rear facing, infant made it out without a scratch.