There are more dangerous drivers then Russians in general: Moscow drivers, then - Moscow taxi drivers, then - shaheed-taxi drivers in Moscow.
Shaheeds are usually people from Caucasus who bought driver's lisence and went to Msk to "bomb" (work as a private taxi). They usually drive rusty Lada-classic, their favourite ride is 2106, model six, "shaha" in Moscow argot, so they are all "Shaheeds", like Moslim suicide-bombers.
90% of the traffic accidents in Msk involve this guys. They have absolutely no idea of traffic rules, and sometimes don't understand that they have to drive on the right lane, not left...