Dr. Pepper style flavored energy drinks?

[ThePieHole]

So I picked up a generic-ish energy drink from a C-store near my new office, and had some high hopes. It was named "Dr. Rock", and my wish had been for it to be a Dr. Pepper clone as an energy drink, but it was simply another barely drinkable Red Bull wannabe.

Are there any Dr. Pepper-style energy drinks out there? And if not, would this be a good idea?

[SodaFan16]

I doubt there's any out there, that would be awesome though. Dr. Pepper tastes great.