text: So, what could have caused the driverless car to not work properly? One could be other unsafe drivers. How can some type of technology rely all by itself and worry about other outside objects and obstacles at the same time? What if some other driver who doesn't have a car that has "autopilot" and they were to have an accident and interfeared with your vehicle. In paragraph 2 it states that "Their cars have driven more than half a million miles without a crash". Yes without their cars crashing but what if someone else crashes into you? Imagine how expensive it would be if you were to have an accident with this car. Cars are already expensive enough when you get into an accident, but imagine how expensive it would be with a car that has all this technology in and on it. Plus imagine your insurance rates skyrocket with all of this.