150 years ago, sure. Coca-Cola has neither coca leaves nor kola nuts these days though, and modern cream soda in the US is a vanilla-flavored amber beverage.
Since then (by 1929), Coca-Cola has used a cocaine-free coca leaf extract. Today, that extract is prepared at a Stepan Company plant in Maywood, New Jersey, the only manufacturing plant authorized by the federal government to import and process coca leaves, which it obtains from Peru and Bolivia. Stepan Company extracts cocaine from the coca leaves, which it then sells to Mallinckrodt, the only company in the United States licensed to purify cocaine for medicinal use.
Nothing to do with vanilla.
150 years ago, sure. Coca-Cola has neither coca leaves nor kola nuts these days though, and modern cream soda in the US is a vanilla-flavored amber beverage.
Fun fact, they still have coca leaves.
Wikipedia:
It always fluorescent pink whenever I've seen it.
"Red" cream soda is a slightly different drink. I'm not sure what the flavor is supposed to be, other than, well, red. But it's different from something like IBC Classic Cream Soda, which is amber. Example: https://i5.walmartimages.com/asr/2e3fb06b-0562-4c17-9baa-af650463189d.dc2cf3327322055234653f162f93f31b.jpeg