Cars Slide Helplessly Down Icy Hill, Triggering Massive Pileup Unspecified Location — A dangerous winter chain reaction unfolded on a steep, ice-covered roadway when multiple vehicles lost traction and slid uncontrollably downhill, colliding one after another and blocking the road in both directions. The video shows cars approaching what appears to be a routine incline, but the pavement is coated in a nearly invisible layer of ice. As vehicles slow and attempt to brake, tires immediately lose gr