A bit painful to watch.
We here at CarBuzz like the Cadillac CTS-V, so we're never exactly overjoyed to see the kind of thing you'll see in the video. What happens is simple enough, a CTS-V loses control while drag racing and hits the concrete barrier, it happens all the time. But the force it hits it with is something else. The car is pretty thoroughly totaled, no surprises there, but it managed to smash the barrier as well.
It isn't immediately obvious how badly the barrier is damaged, but the end of the video will show the other side, and it's clearly quite smashed.