Lark doesn't like to get in the car particularly, either. I still sometimes have to lift her front legs up and then her back legs. Sometimes I open all the car doors, put her on a leash, and if I go in one side and out the other, and call her after me, and use treats, she'll go in and out. I've just done it as a game as part of practicing obedience training and don't necessarily go anywhere, just in and out of the doors- Isn't this fun? I leave Chase inside when we're playing the game. She rides beautifully in the car, she's just hesitant to get it. She doesn't fight me and try to avoid getting in, she just doesn't voluntarily jump in. I don't take her places in the car all that often so she kind of forgets from one instance to the next but if we've played the car door game recently, she does pretty well. Try to make sure every trip isn't to get shots or get his ears cleaned. He didn't understand that some trips can be ice cream, I guess! That reminds me, we need to start practicing on the ramp so she'll walk up into the back of my SUV- she's too much for me to try to lift unless it's an emergency and my adrenalin has given me superhuman strength.