Well I am now 100% sure that Gunnar suffers from car sickness. I tried only taking him in the car after he has had time to digest his food but he still vomits. It starts with excessive drooling and a few minutes later he vomits all over . My vet suggested childrens Benadryl 1 gram per pound of body weight. Has anyone else tried Benadryl? Or does anyone have any other suggestions on alleviating his car sickness? I know that it is critical to socialize GSD's when they are pups and we take plenty of walks etc. to socialize but I want to be able to take him to visit my family and their dogs. Any suggestions would be greatly appreciated!