I enjoy drinking Coke after a long day's work, not for the caffeine but rather the thirst quenching attributes. I don't drink more than that due to how much sugar/acid it has.
Does red wine have sugar/acid?
Does red wine have sugar/acid?
You can get it cheaper than both Coke and wine, and contrary to the alarmism in that page, it's quite safe if you take some basic precautions (and helps extend your life too.)
I'll point out though that there is no sugar in Coke, only high-fructose corn syrup.
I'm assuming red wine's residual sugar is in the form glucose, but could be wrong.