The whole card idea goes right back to square one IMO though. Just like people need keys to turn a cylinder, they will need a card to start the car. Both ways have electrical work arounds, unless you embed your wires in cement. Then they can still tow your car away.

I still think that the idea of a 4 wheel brake line lock would be best. Some sort of valve to lock hydraulic pressure into your calipers that does not require constant electricity and was made for long periors of use.

I would like to further explore that idea, because it would make driving your car impossible, towing the car impossible, and dragging it onto a flatbed pretty noisy.

GPS Tracking is a must, especially for anyone who has anything to lose.

I kinda like the pepper spray idea, even if it was a joke. I remember once we re-routed the windshield spray nozzles on an F150 into the cab, aimed at my co-workers crotch, and put mud all over the window...he had a nice suprise.

I imagine that if you had a resevoir with something not too nice, and the ignition completed the pump circuit unless another hidden switch was in the off position, you could really fuck someone up. Just hope there isnt an electrical malfunction while driving the freeway.

As for security, I am not too paranoid, but I think its time to put my tinfoil hat on. I posted before about locking my keys in my s13, It took me about 30 seconds to get into my car via the frameless windows...

I wish I had a garage.