Amanda,
My DD hated car travel for some time, we had problems going over 30 minutes. She hated it when it was dark when it was light, pretty much anything. We now feed her as we travel which when we live 90 minutes from family it can be stressful. The Wiggles CD's are working and small bits of food passed constantly. At 2 she is starting to get better, she may find it more interesting when she is turned, having a little more interaction. Good luck It is horrible having a child that hates the car.
Bec