Sunny got terribly carsick for a year. 2 things really broke it for her:

1) Our friend who has 2 labs who LOVE the car took Sunny for a ride with her 2 labs. Sunny was distracted by the other dogs and seemed to notice how relaxed they were.

2) We got her a hammock so she could feel secure in the back seat. Just a picture: http://www.improvementscatalog.com/p...b-0026b9571fcb

I didn't use that site but just googled "car hammocks for dogs" you will find lots to choose from.