It's easy to add things like a chin spoiler, window louvers, rear spoiler, different emblems, different lights, grilles, etc to do make it look pretty much any way you want it to. American Muscle has all of that stuff so you can easily see what it would look like on the car. eBay also has some good finds from people taking things off their cars and selling them.
I like to do subtle things to make my car look a little different than the next one. I haven't done a whole lot of power mods yet, just kind of want it to look the way I want it to first before I start dropping big money on performance items again.
Torque: It's like crack for your right foot