they did it on mythbusters. hit a car with emp....then all that would work was the electric windows. it didnt kill the battery, someone drove the car through an emp field and it fried all electric circuits. except lecy motors.
fyi. I still got me carby and dizzy there for a back up. so for if that day comes I can still pushstart the old girl and get er goin again. cant put dizzy in modern car. no hole....until then I will enjoy my precise ignition and injection that isnt tuned properly because I dont have a dyno!!