Yeah I got the black (dark gunmetal) OEM wheels on my "Mz3". Got them from dealer almost a year after I bought the car. I get 20% off mazda accessories for the first year. Came out to around $1000'ish or something like that for them and I sold the stock wheels for $400.
I done aftermarket wheels on different cars and they always made the car look great But the ride sucked with aftermarket wheels,thought if I stayed with Oem ones that would ride fine, I may look into blacking out a set or see when buying a 3 I can get dealership throw them in never know.