On and On by Janet Jackson

It's literally a song about cruising down the road with the top down.

Dolphin by Prince

It's about reincarnating as a dolphin, which is what I do on the road.

Rock Star by N.E.R.D.

I remember when I first got this album, visiting my parents and going to pick up my then-girlfriend, now-wife at the airport so she could meet the folks for the first time, and being excited and a little nervous and just rocking out with this song blasting out of the windows of the rental car.