Ok, I'm not good at math, so my reasoning may be faulty. But bear with me here.
A can of beer has 330ml in it. I don't drink beer, but it's about what, 4% alcohol per volume. That would mean that each can of beer contains 13.2ml of actual ethanol. Sixteen cans would be 211ml of ethanol. Now, just a few weeks ago, I drank some brandy which was 50% alcohol by volume. I had about half the 750ml bottle. That would be about 190ml of actual ethanol. Now, don't get me wrong, I was pretty drunk. But I wasn't so drunk that I wasn't able to help my much drunker girlfriend throw up, carry her into the bedroom, put her to bed, make her some energy drinks, get a bucket, then go to sleep and wake up remembering everything.
I'm 6 feet tall and about 175 pounds. I am an experienced drinker in the sense that I started early and used to do it a lot, but I hardly get drunk more than a couple of times a year now. Aside from the fact that one would have to go to the bathroom more, I don't see how drinking 16 beers is some superhuman achievement. Maybe it's because I was in a frat. For the sake of comparison, at the national plum brandy drinking championship in Serbia in 2010, the winner apparently drank a litre and a half of plum brandy(40% alcohol by volume) in two hours, and was not only not dead, but was able to walk on a beam and give a somewhat coherent winning speech.
Oh, and yes, drinking and driving is idiotic and I would never do it. But this isn't about that.