text: This has been said repeatedly but once again none of the cars that have been developed so far are completely driverless. Human skills are still needed when driving these cars. As long as you get into one of these cars knowing that you will need to be alert, there is little to no chance of an accident occurring. "Special touch sensors make sure the driver keeps hold of the wheel." (p7) Being alert when in a driverless car will not be as hard as it may sound due to the modifications that have been made to these cars. "This necessitates the car being ready to quickly get the driver's attention whenevera problem occurs. GM has developed driver's seats that vibrate when the vehicle is in danger of backing into an object. The Google car simply announces when the driver should be prepared to take over." (p7)