From Victor Steinbok, this B.C. cartoon (from 4/16/13) by Johnny Hart: This is intended to be a portmanteau both verbally and visually. Verbally, Mercedes-Benz overlapping with benzene. Visually, a combination of the symbol for the Mercedes-Benz company and a simplified version of the carbon ring structure for benzene. The two symbols: From the first, the … Continue reading B.C. portmanteau