4. Deep Purple, “Highway Star”
[youtube]http://youtu.be/UNQKf-JIPVI[/youtube]
This seems like an obvious choice. Besides just being a great road song in general, we use it to spur our tour driver forward because he drives like a grandmother. Also, the guys from our tourmates Bang! told us the most insane story about how they showed up at a Deep Purple/Small Faces concert in 1972 with all their gear and demanded that they be allowed to play. And the promoter let them.