I've never run out of gas, in any vehicle I've ever owned. Come close a few times, but never run dry.
My current (2008) Subaru Forester, the light comes on somewhere between 13.5-14 gallons used on a 15.5gal tank - in theory, you've got over 50 miles left when the light comes on. I've gone 40 over, once, and put in just about 15 gallons when I made it to the gas station. I don't like to do that, but I will run down below a quarter tank quite often before filling up. I should probably change that habit.