Sparks,
I tried this on spring break, you might recognize this as a zoomed version of my picture of "the interior of the crackhead hotel"
It has a lot going for it, damn cheap at $1.50 at a 7-11, taste damn good, and the clincher....6% alcohol in a 16oz drink, which equates to a little more than a beer and a half.
Obviously this isn't a traditional energy drink as it is alcoholic, but it has my approval.