Come Pick Me Up by Ryan adams

Perfect for that country open road mood, and with the windows rolled down, the wind whipping your hair, reaching out to touch the sun and letting your hand feel the air.

Paint the Silence by South

This when you're driving on the freeway, beside the beach, running away from your stressful life. Just getting away and moving on.

In The Name Of Love by U2

Feel the love. Feel the history. Feel the change. And then get the goosebumps. A roadtrip to Martin Luther King's motel, where his life ended but his legacy continued. And of course, it's U2 :p I would even put "Still havent found what im looking for".