An alarm system has been created that takes a picture of a would-be car thief and send it to your cell phone. It also records it to an on-board hard drive.
Reminds me of the carjacking deterrents in South Africa. It was basically a flamethrower mounted to the bottom of the car. Someone tries to carjack you, hit the switch, and toast the would be thief. Crude, but pretty effective.
bastone.org 