I wouldn't dream of removing my S4 badge as its simple and looks good. If I had a different model I may consider a de-badge. Love the small front grill one too.
Oddly enough, I have seen loads of S4's with an S4 on the left of the boot lid (as expected) and a Quattro badge on the right. I don't have the Quattro badge and I have seen plenty of others that don't.
Do people add these are they an option of some sort?
Also, the V8 badges have grown on me although I thought a little tacky, now I am proud of the 8 cylinders and wouldn't dream of removing these either.
I like the smooth look, but the problem with debadging is that people who don't know cars will just assume (despite all the design touches) it's a lower model. I say leave it on, but then I'm getting rid of the V6T badges and replacing them with OEM S/C badges
I love excessive non model specific over-badging...