Not sure if anyone else has posted this in the past, but I've been curious as to how Tesla plans to protect the Model S from being hacked. Given that there is no ignition system to hot-wire. I found this link (Federal Register, Volume 77 Issue 72 (Friday, April 13, 2012)) which refers to a remote immobilization system. Very interesting.
Model S P#3853
Model S P#3853