So with all the amazing technology we have access to these days, has anyone
come up with a better security system to protect our much loved possessions,
like this awesome Mustang for instance?

One thing that comes to mind is some sort of remote kill switch with GPS.

With car jackings on the rise, has anyone come up with a small remote that you keep on you (or a pin number activated by any phone)
and if by chance your car is stolen either by car jack or broken into;
you would only have to activate the remote kill switch and it stops the car engine dead and the thief goes no further.
(which could also be a bad thing if they can still see you)
Along with having a GPS fitted, if you did lose sight of your vehicle, you would be able to locate it again immediately.

I'm guessing there's already products like this on the market.
And if so, how good are they? There's a lot of clever dudes out there, both good and bad.
It would be nice to have a "fail proof" car security system for once.