yeah i know what you mean. Tyke shakes when he rides too. he gets sick if you put him in a carrier. i haven't tried a carseat for him because he trys to get to me and sits in my lap. i did buy a seatbelt for him and put him in the seat beside me....well that didn't work i had to stop and take him out. he was about to choke himself trying to get to my lap.
I was told to use Benedryl before a trip, but not sure about it though. i have to figure something out because in April we are going on a trip 2 1/2 hrs away and he has to go with us.

I just hope things go well.
i just don't want to waste money buying a carseat he's not going to sit in.
i'm looking for suggestions too.