ORIGINAL: Carbon
quite honestly, if someone steals it I wouldn't want it back after all the damage and would rather just go buy another one with the insurance money.
Also, with the whole engine shutting off once you hit the brake when the key is more then 10 feet away it will be hard to steal that way unless they were in the inside and if that is the case, they deserve the car........hehehe
my car stays on.i left the car in the driveway running ran into my house with the keys and brushed my teeth and all. car was still on; warm and ready.