According to Google, the prototypes which will be doing these rounds, will limited to speeds of 40.2 km/h and each model will be equipped with a removable steering wheel, accelerator and brake pedal, so a driver can intervene if there is any glitch; if at all. Even Google thinks that it is a remote possibility of anything happening because the software that will be used is from its existing fleet of self-driving Lexus RX450h crossovers. Now, these cars have logged in nearly a million autonomous miles on public roads. The people at Google say that their autonomous driving fleet has already logged the equivalent of about 75 years of typical American adult driving experience, which is quite a feat.