Sorry to hear that.
What car are you planning to replace the Y with?
We have test driven Toyota Highlander and Lexus RX 350 so far. Both are nice Lexus looks nicer, but Highlander seems more practical. Lexus has weird interface. May look at other cars. We have person interested in private party purchase next week.
On some of the other posts I tried the blankets and my wife said it felt better, but still feel something on rough roads which we have near our house. I had my headphones on this morning listening to music when I was putting the blanket in the back. Started to feel the ear pain and sure enough took off ear phones to hear the cooling system running.