text: Driverless cars have a lot more pros than cons. With driverless cars that google cofounder Sergey Brin has designed and envisioned, these cars can go miles and miles with out needing to fill up with gas. Also they can get through tight situatuions since they'd be much more flexible than a bus. As Brin says, "[cars such as these] would fundamentaly change the world.". Google has modified a Toyota Prius and tested it's driverless skills; it has gone farther than half of a million miles with zero crashes.