Marc writes that cars couldn't see him until he added a flashing red rear light, and now they see him and no longer drive right next to him. link Manfred writes of a car that turned right into him at the intersection. A car driver driving into the sun made a left turn into a friend, putting her into a coma for weeks. So now I will have a flashing light on the front and back of my bike. I have been hit twice by cars at night, and the drivers said that they didn't see me, even though I had bike lights. Manfred lists major dangers: 1-Car driver turns right/left into bicyclist; 2-Driver with cell phone while turning; 3-Driver fails to signal left turn or signals only a few feet before turning; 4-car diver races to traffic circle. link