text: Now for the cons of having driverless cars. For starters it would cost a bundle of money to make all these smart cars. What if you don't want to get a smart car that drove itself, would you have to? Also would everyone get rid of there old cars and where would they go? Another thing is as a mass of us know technology does not always work when we want it too and is not always on our side. So the car could stop working on us. In the article it said that they made a road that was smart, but that would cost way to much money to replace all the roads and a ton of time spent doing it. The whole car would relay on sensors that could go out at anytime, whenever they wanted to, and however they wanted too.