Road trip with 5 month old, help?

Ni

Thursday the 24th, we will be moving to Wyoming from Oregon and will be driving. We have a 5.5 month old baby girl that will be going on her first SUPER long drive. The most she's done is about 1 hour and 45 minutes of straight driving. She is breast milk fed, both boob and bottle. Any suggestions from Parents who've driven long distances with young ones/infants? Anything will help, especially since I'm a FTM.