Post a picture. There was no renegade in 2003 so it's either a sport(x) or a Sahara that someone put retro renegade stickers on. It looks cool nonetheless.
Sport and X are the same thing but different years. They can be the most basic but they also have options to make them nicer. On a tj, they could have the 4 or 6cylinder and a 4 speed auto or a 5 speed manual(switched to 6speed in 04). The Sahara had body painted fender flares, I believe came with AC and you could upgrade other things too