Disclaimer: That only works if you are white.
Maybe you should use a meme generator for that one?
Or, consider the reality of it. Cops who pull people over while driving unmarked cars are completely used to not being trusted - by anyone, of any color. I have a great relationship with the cops I know, and have never had a bad moment with any I don't. My wife and I are lily white, but I'd never encourage her to pull over for an unmarked car anywhere but in a very populated spot, and ideally in front of the local police station. I do not trust unmarked cars, and there's good reason for that. Great news bit just this morning, where a cop-impersonating douche in a white Crown Vic pulled over (wait for it!) an off duty cop. Good one. He got to flash his badge, and was packing (guy drove off, but was promptly caught and arrested). What do the rest of us get to do?
Meanwhile, back in your race-card-playing department: there's a reason that cops in rougher neighborhoods don't EVER do normal traffic stops in unmarked cars. Cops in marked cruisers get attacked, run over, shot at and otherwise put in peril all the time. And those are guys rolling in plainly marked cars, wearing uniforms. I'll have to look around to see if there are any stats on basic traffic stops in marked vs. unmarked cars in high crime areas. My sense, from talking to people in that line of work, is that it's very rare. Unmarked cars in those areas aren't about traffic citations - they're usually working warrants, drug mules, trafficking, that sort of thing.
In the mean time, if you get the lights on you from an unmarked car, and it doesn't matter what color you are, proceed at the speed limit to the nearest station, or look for a marked car and honk to get their attention (if the unmarked is real, the officer in the marked car will already know what's going on, and will usually join in the stop to help protect the unmarked guy and to make sure anyone seeing the scene understands it's legit).