I removed all badging on my Saab 95 and that made it look much "cleaner". Besides It also Get people a bit curious of "what kind of car is that?"
Not sure that's a good idea. Everyone's seen a Saab. Most people haven't seen a Tesla. My Roadster's TESLA logo is kinda hard to read. As a result I often get people tailgating me trying to read it. Quite annoying. If there's nothing at all you might find people doing stupid stuff while trying to figure out what your car is.