I am having trouble getting my dog into my car. I used to own a little Swift and I had no trouble getting her in and out of it. Then I got a cavalier and she hates travelling in it. She knows when she is going in it straight away she hits the floor, rolls over and refuses to move. We have tried all sorts of treats, we have tried walking her by the car a few times and rewarding her, we always end up picking her up and putting her in the car which is hard she is a lab mix. I was wondering if she could be suffering from motion sickness, she is never sick, but she shakes and struggles to climb into the front of the car, we use a harness which clips onto the seat belt so she cant move around to much. Am I going about the training wrong, I dont want to have to sedate her for the short 30 minute journey to doggie daycamp, but I dont know what else to do, any suggestions? She is 4 years old.