Google has announced that they are set to test their self-driving cars next month.

The tech company said in a statement that a few of their self-driving prototype vehicles will “leave the test track” and hit the roads of Mountain View, California with the aid of “safety drivers.”

Google claims that the speed of each prototype is limited to 40 km/h and will have a removable steering wheel, accelerator and brake pedal which allow the “safety drivers” to take over driving if needed.

Google adds that the company have been running their self-driving cars through rigorous testing at their test facilities. The new prototypes are equipped with the same software that are installed on Google's existing fleet of self-driving Lexus RX450h SUVs which have been “self-driving” for about 16,093 km since the project started.