When I went to ISTAS12 in Singapore almost every other taxi I entered had a dashcam. Here is why.
"The most horrifying car crash ever caught on film? Dash camera captures moment Ferrari hits taxi at high speed killing three. Both drivers and a passenger died in the high-speed smash in Singapore."
"Police gave no official estimate as to how fast the Ferrari was moving, but the extremely high speed of the collision is plain to see from the video."
Source here: http://www.dailymail.co.uk/news/article-2147513/Dash-camera-captures-horrific-fatal-crash-rare-Ferrari-hurtles-taxi.htm
In Russia dashcams have also proliferated in protecting oneself while on the road. Note- dashcams will NOT save your life, but they might make life after an accident easier as you might have primary evidence in clearing yourself of being "at fault".
See this story.
"It’s not all the fault of the elements, though. Corruption is rampant in the Russian Federation, and that’s led most motorists to take matters into their own hands. It’s not uncommon for a driver to be pulled over by the notorious Russian Highway Patrol (GAI) and harassed into paying a bribe. Dash cams afford at least a little protection from baseless accusations.
Lax law enforcement has also made is easier for organized crime to make millions from insurance scams. It’s a straightforward racket — crashes can be staged, or already damaged cars presented as evidence of a crash that never even occurred. The perpetrators can certainly produce witnesses that corroborate their version of events.""
The following video is of a real-life event. Thankfully no one was seriously injured to my knowledge which is the only reason I am presenting the recording here.