Mtn Dew has a new store-exclusive flavor — Purple Thunder. It follows the still-Dollar-General-exclusive Maui Burst and the one-time Speedway-exclusive Spark (which was available at other retailers earlier this year). Purple Thunder is a Dew with a blast of berry plum. When I look at its purple color, I can’t help but dream of Mtn Dew Pitch Black. Yes, yes, yes, the beloved grape-flavored Dew was much darker. But I see purple, and Pitch Black is all I can think of. Anyhoo, Purple Thunder is rolling out to Circle K stores now. It’s available in 20-ounce bottles and on Polar Pop fountains. (Thanks to Mountain Dew and Circle K for the samples and info.)