[WGH]

Black Insomnia Coffee
https://blackinsomnia.coffee/worlds-strongest-coffee/

Haven't tried it and definitely not for me but probably perfect for long distance drivers.

http://www.grubstreet.com/2017/03/worlds-most-caffeinated-coffee-is-black-insomnia.html

"Creator Sean Kristafor says he worked with Gerald Charles, a top South African roaster and barista, to reach a borderline-dangerous caffeine level — 702 milligrams for 12 ounces — through painstakingly sourcing robusta beans. Also, 16-ounce bags are Amazon Prime eligible, making them, for better or worse, “instantly available to the American public.”

[srb]

Proof that there is no shortage of bad ideas in the world.

[Mike B.]

Caffeine acts like a laxative. Users better have a bathroom handy  

[*Scotty*]

Black Insomnia maybe the strongest coffee but Death Wish Coffee is cooler. One mans opinion.

https://www.deathwishcoffee.com/collections/death-wish-coffee
If you happened to miss the Super Bowl Commercial here is a link:
https://www.youtube.com/watch?v=V_3H_Y5QUWw
Scotty