Sugar turns out to be an ambiguous concept. Does “sugar include high fructose corn syrup, or is the term restricted to cane sugar? I can defiantly tell the difference between a high fructose coke cola and the Mexican version made with cane sugar. The latter is much, much better to my taste. However, I sat through a video where someone analyzed the sugar in both and came to the conclusion that the cane sugar in a Mexican coke quickly became chemically indistinguishable from the domestic, high fructose coke soon after bottling.
If something has cane sugar as an ingredient, I’ll buy it, but if it says high fructose corn syrup, I stay away as much as possible. I wouldn’t be surprised to find out that in the body it does the same thing, but maybe it takes longer to convert? I don’t know.
I don’t drink soda anymore, so I wouldn’t know about the taste, but I’m sure the Mexican version would taste different/better. If you’re a Coke person, then it’s neat that you’ve found it.