Fark linked up news that EMP "disablers" are becoming more practical:

James Tatoian, chief executive of Eureka Aerospace in Pasadena, California, is developing a system that uses microwave energy to interfere with microchips inside cars. Once the chip is overloaded with excessive current, the car ceases to function, and will gradually decelerate on its own, he said.
...
Tatoian said that while he is not the first to come up with the idea of using electromagnetic interference to stop cars, he has been able to reduce the size and power consumption of such a device so that it would be much more portable.

Which is yet another reason to enjoy the ol' Alfa... the only transistors on it (let alone CPUs) are in the radio, and I don't usually have that on. Muhahahahahaha...

Gah. I need to get out more.