Mexican Cokes use Cane Sugar, which differs from US manufacture. Also the bottles seem much more sexy than cans.
FWIW, a fellow manager back in the early 90s, would drink Diet Coke as a substitute for coffee, but he consumes a 6-pack before 10am and 1-3 six-packs throughout the work day.
I now just drink tap water in a used sports drink bottle, rotating new bottles periodically for hygiene. Keeps me hydrated and low cost.
I love coffee. i used to drink 64 ounces a day. Then I began to wonder why I have headaches.
Duh.
Now I limit myself to just 24 ounces of coffee a day. Still too much I know.