When we brought Jet home he was 10 weeks and very sick all the way , every time we took him out he was also very sick, we did the ginger biscuit it has to be real ginger in it though that seemed to help , then we took him very short rides with a walk at end of trip then back into car and home as he loved the walks he started to enjoy the car rides so we went longer , he stopped being sick after about two weeks and loves the car now, but i know its not nice at all as we were stopping more than driving to clean it up, good luck im sure he will be fine soon.