The song from the 'Leaving College' commercial for the Saturn Ion is: 'Tiny Spark' by Brandon Benson.
I consider myself lucky to have found this. It took thinking of all sorts of combinations of words and phrases pertaining to the Saturn commercial (and several hours of my life) to finally hit upon it. Spread the word... ;)
BTW: The rest of the song I think is quite good, especially since it is entirely contemporary, and the rest of