Also, it's perfectly legal for deaf people to drive cars and ride bikes, so relying on sounds for safety doesn't work for everyone.
I don't even understand what the Engineer at the beginning was doing. His DNA somehow spawned humans except that we're clearly evolved from other life-forms on Earth, so maybe the Engineer spawned all life on Earth. Except, that would mean that he spawned all the dinosaurs and just got lucky that mammals ended up becoming the dominant life-form to eventually evolve into humans. How is that even supposed to work?
I'd prefer more intelligent sensors/cameras that penalise aggressive acceleration (i.e. sudden rate of change of speed in close proximity of other road users) or can detect lack of awareness of the driver.