NEW YORK (TheStreet) -- I notice that when I stop by the supermarket here in San Diego there is now a cooler full of sleek, old-style bottles filled with Mexican Coca-Cola.I like the Mexican version a lot better than the American version. There is just something about an ice-cold glass bottle. In addition to this, the Mexican Coke uses a less refined sugar than American Coke that makes for a sweeter, bolder taste. Drinking these Mexican Cokes is like going back 40-50 years when the American version came in similar bottles and one needed a bottle opener to pop the lid. That was back when the American version of Coca-Cola's ( KO) stock was an aggressive growth stock and the Mexican version, offered by Fomento Economico Mexicano SAB de CV ( FMX), did not exist. Since then, Atlanta-based Coca-Cola has matured and growth has slowed down considerably for this Dow Jones Industrials member. The company is now a $169 billion firm while the Mexican version is just $35 billion.