These guys who have degrees from MIT offer car advice and sarcastic humor every Saturday morning on NPR. Their radio show, Car Talk has devoloped somewhat of a cult following over the years. Every week, they challenge their listeners with a puzzler, a test in logic or general wacky thinking. These puzzlers keep the listeners coming back... the true definition of an addictive agent. Remember, if your car has an annoying rattle, the easiest solution is to turn up your radio.