Curious what factors dictate your personal auto insurance premiums? The guys and gals over at Car-Insurance deep-dove into the matter and after hundreds of hours of research came up with some startling findings (and some not so starting--such as the simple fact that your driving record plays the largest role in determining your insurance rates) and other very interesting things that every American driver should know. Part of this infographic is for entertainment (what's the fastest speeding ticket ever written), but the majority are facts and figures that are finally now public knowledge, and something that people have been longing to know. Keep in mind that each insurance company (or rather, their underwriters) use their own proprietary formula to determine premiums for the cars they insure, but since this graphic utilizes national averages and data from all underwriters the percentages indicated tend to accurate for most American drivers regardless of their insurer.