UGH, I used to have bad motion sickness myself so your description of your road made me remember that! Unfortunately Eli also is nauseous or anxious in the car as well. He is very restless and drools. Front or back, doesn't make a difference. We usually only go a few miles, and it's to a place where we take a nice walk, so I dunno if he'll ever outgrow it. We tried ginger and rescue remedy, and neither one helped. Eli is 1 1/2.