A road trip is read as freedom, shared adventure and a break from routine. Who travels with you and how the mood feels are taken as the heart of the dream.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.