If Bose is in every car and they're the richest audio company around, it stands to reason that they're the best, right? I don't understand why this is so hard for you to understand Albert :-)
The best part about Bose car stereos is that they use non-standard electrical interfaces, so if you want to swap them out, it's a LOT more work / expense.
As for B&W, I have no idea if car audio has anything to do with their name change. As a devoted BMW-driver, I can attest that nobody who has ever heard a BMW car stereo would not want a BMW stereo in their car because they're terrible, even if there was no brand-clash. Even their "upgraded" Harmon Kardon system is lame - terrible in the 3 series, passable in the 5 series.
The best part about Bose car stereos is that they use non-standard electrical interfaces, so if you want to swap them out, it's a LOT more work / expense.
As for B&W, I have no idea if car audio has anything to do with their name change. As a devoted BMW-driver, I can attest that nobody who has ever heard a BMW car stereo would not want a BMW stereo in their car because they're terrible, even if there was no brand-clash. Even their "upgraded" Harmon Kardon system is lame - terrible in the 3 series, passable in the 5 series.