When I was wrapping up the lease deal today on my 2007 G35x Sedan, they tried selling me an aftermarket alarm that has a panic alarm, remote passive alarm with automatic disabler. He told me the car did not have an alarm. Upon looking on Infiniti's site. So if someone tries to break it, I do have an audible alarm, correct? Sounds like he tried to sell me something extra I don't need.

Infiniti Vehicle Immobilizer System
The Infiniti Vehicle Immobilizer System embeds an encoded transponder chip into the Infiniti Intelligent Key. The engine control computer will not allow the engine to start without the correct key and transponder

Vehicle Security System
The Vehicle Security System, which is activated and deactivated using the Infiniti Intelligent Key, will sound the alarm if intrusion via doors, hood, or trunk is detected.