I find it interesting...these are touted as "optional" safety systems. I agree that consumers should pay for them - they are extra technology that have added costs (R&D, manufacture, etc) - but I see an inherent flaw in making these "optional" as opposed to making them standard equipment. Maybe not all of them - who cares about beep beep beep beep beep...but the actual intervention systems (Infiniti's ability to brake when reversing) seem like they should be standard place...at the very least, they'd reduce insurance premiums for backing into other cars in parking lots.
I'd like to see at least some of these as standard equipment, is my point. Preferably those undefeatable systems that automatically brake when a low-speed collision is imminent. It would at the very least preclude many frauds on insurance companies (common place in Ontario and Quebec these days).