They have invisible trucks in Russia apparently, watch the crash that happens around 55 seconds.

I still can't figure out exactly what happened, unless that smaller truck was skidding between the bigger truck and the wall for a while, and then it caught on something, sending both flipping.

that is crazy about the invisible truck thing....i honestly can say i have no idea where it comes from

I think I'd find any excuse I could to not use that tunnel in the winter.

Why in the winter? There's no snow or ice down there, it's a tunnel. Is it so you're not outside in the cold after you wreck your car?

Look at the wall during the bus crash. It shows a good view of something - like a fence or gate. I wonder if there is another tunnel on the other side of the fence/gate and the second truck came through there due to an accident on the other side.

donteatpoop, I don't think you read the paragraph below the video. ;)

Haha. Yeah, now that I've read that it's all clear to me now.

to quote the blurb on the page with the video:

Water drips through all year, but it only really becomes a problem when the temperature in the tunnel gets low enough to make ice.

Ooh, you should be so grateful you don't actually live in Moscow (as I do). I'll just say that this isn't the limit by far. As a matter of fact, for Russian drivers the sky isn't often the limit.