The Super Bowl appears to be doing just fine without General Motors.CBS has sold more than half
of its ad allotment for the 2013 Super Bowl, according to Advertising Age
, and the early buys are being driven by other car manufacturers. (The story did not name them, however.)After pulling its Facebook ads
, GM raised more eyebrows by skipping Super Bowl advertising
for next year and officially announcing Thursday morning that its Chevy ...