Car sick!

Hi friends,

This weekend I went with my wife to Tilarán. This time, we took Bailey with us. She has been fine in short trips but she seems to get car sick during longer trips.

^ Poor Bailey felt bad after vomit. I had to grab her hear until she fall sleep and I had to stay like that for couple hours.

I was wondering if you know any tricks, tips or advise on how to make the trip easier for her.
I think she is ok drinking water in few stops as it gets really hot sometimes.

I need to make her more confortable as I plan to take her with me on future trips and have fun with her. She is so energetic that I can see myself going for a run with her.

Thank you in advance for any suggestion.