If you were driving a base model 528i then people think that you are driving a $70K car, to most people M3 is nothing but a 3 series, which is pretty much basic German transportation.
I remember a similar conversation when i bought my M3 and the persons reaction was.....wow, you can get a 5 series for that price
Overall, who cares.
Current: 2016 F10 535i xDrive AW w/ Black Dakota, ZMM, ZCW, ZDA, ZDB, ZPP, 688 & Black Grills.
Retired: 2011 E92 M3 -AW
....ED April 29th, 2010
Retired: 2007 E92 335i -Space Gray.....ED Oct 19th, 2006