Is there a difference between a Seville an a SLS. I know about the STS but my car is a 1993 Seville and usually I see on the back of the car SLS or STS. Mine just has the word Seville on it. Tell me is it a difference.

History of the Seville (http://www.libertysoftware.be/cml/trivia/sevillehist/history.htm)

A little More (http://en.wikipedia.org/wiki/Cadillac_Seville)

Maybe this will help