Quote Originally Posted by Dr Terry View Post
GMC is the acronym for General Motors Coach, their bus truck division.

Dr Terry
I'm not certain that is the case Terry. It appears GM outright purchased Yellow Coach and created the GM Truck and Coach division in the 40's (they'd part owned Yellow since the 20's). But the GMC Truck name or marque had been around since 1912. According to a few sources on the 'web in any case.