What is the name of rock song that begins with a car driving sound?

The song you're thinking of is "Free Bird" by Lynyrd Skynyrd. The song begins with the sound of a car driving, and then the guitar riff kicks in. The song is about a man who is leaving his home to go on a journey. He reflects on his life and the people he has left behind. The song is a classic rock anthem and is often considered one of the best rock songs ever written.