Trixie is only 14 weeks old and we have had her for two weeks. She rides in the snoozer lookout carseat and although she is still just adjusting, she seems to do okay in it. We put a toy in the seat with her blanket...that seems to help. She does cry/whine a little but eventually stops panting and settles down. We try to get her used to it by taking her out for alittle ride each day. I won't let her ride in the car without her being in her seat...it's just too dangerous with the airbags and all. Good luck. I hope it works out for you