Describe the perfect song for a road trip and why it works.

This was an ice-breaker at a work meeting not long ago, and the only song I could think of was "Everybody Wants to Rule the World" by Tears for Fears, one of my favorite songs, and listening to any of my favorite songs would make any road trip better, but that's really stretching the definition of "perfect" and what is perfection, anyway? Why are we all striving for perfection? Isn't it better to be real, to be messy, and to be vulnerable? Why would we want to choose one song for any activity? What if we change our minds? We are innately mutable, capricious beings and I guess this is what it's like being in my head all day so you're welcome. Music.