None on my car either... my SUV has a small American flag decal on the window... I like it so it stays there. At one point I did have an alumni sticker on the window of my last car... but when I got the new one I did not want to put anything on it.

I was amazed that I parked the new car (a few years ago now) next to another one like it and then I noticed that my dealer had not put any decals on it! I actually called them to thank them for it. The only advertising they put on was a license plate frame (which I replaced).

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-Toast-
"It takes a lot of brains to enjoy satire, humor and wit - but none to be offended by them." -- Johnny Hart ("BC", cartoonist, 2000)
"Analyzing humor is like dissecting a frog: Nobody really enjoys it and the frog generally dies as a result." -- E. B. White