Google has created what it calls a Matrix-style, virtual version of Californias road system that its been using to test self-driving cars before sending them out onto the actual road, according to the Guardian. Google is apparently so thrilled with its simulation that it petitioned Californias government earlier this year, in a letter obtained by the Guardian, to allow it to use these virtual simulations in place of actual driving tests when certifying a vehicle for use. Computer simulations are actually more valuable, as they allow manufacturers to test their software under far more conditions and stresses than could possibly be achieved on a test track, Google safety director Ron Medford wrote.