text: The cars would have to use a whole lot of sensors to be able to be self driving, and it would cost alot of money to get new roads and everything that is needed for the cars. In cars today we have alot of sensors because they help with an abundance of things such as antilock brakes, automatic windows and many more. in the artical it says that BMW in 2013 announced the development of "Traffic Jam Assistant". That means that the car could handle driving and functioning at speeds up to 25 miles per hour, as long as the driver had their hands on the wheel. Although the cars can steer, accelerate and break on their own the drivers are still notified when the road ahead requires human assistance.