Tactical Nuclear Penguin

At 32%, this awesomely named beer was the world's strongest when it was released but is now relegated to just third!

http://www.brewdog.com/tactical_nuclear_penguin.php

Its been superceeded by the 41% ABV "Sink the Bismarck"

http://www.brewdog.com/blog-article.php?id=251

And now the 43% Schorschbock

http://www.benz-weltweit.de/derbraeuvomberch/produkte_eng.html

But at going rates of around $100 per bottle, its not likely to cause a drink-driving problem!