When I went down to a local place the guy showing me the alarms had that system on his personal vehicle. Remote was kickass. Showed the inside temp, different zones of the vehicle(if someone were to break in or something), etc. The remote has a wheel on the side you use to scroll through all of the settings/features. There's one that you can turn on the rear defroster lol. He said it had a mile range. Overall seemed like one badass alarm.
That's actually the one I want. After seeing his system I don't want anything less. However I want to add on the the infrared sensors. Basically there is a sensor and it has two "bubbles." If something penetrates the outer bubble it will beep a couple times telling the person to get away. Beeps twice and then the alarm goes off the third time. The inner bubble sets the alarm off immediately if it's penetrated. The inner bubble would be inside the car.