I think it may depend on the socioeconomic class of the neighborhood - I'm a white dude, but I used to drive beater cars, and when I was a field engineer driving my own car, it was amazing, because like clockwork whenever I was in a we'll to do area I'd get pulled over for (what I presume was) looking "out of place".
Similarly I've been pulled out of cell sites at gunpoint and bent over the hood of my car, and patted down several times also for "looking out of place".