According to Jalopnic, 259 on the Autobahn is the record
http://jalopnik.com/5318399/259+car-...yline=true&s=x
I know over the years, Michigan's has had a few 130, 170, 200+ car pile ups... all the same thing. Heavy fog + icy/ snowy in the foggy area.
They say it's safest to stay in your car until the pileup has finished. Most fatalities occur when people get out of their car and run to 'safety'
http://www.lansingstatejournal.com/a...WS01/501130352
^^^
this one happened pretty close to where I live.