[MichaelP]

EMP shielding is little more than a faraday cage. That is metal cladding to direct the charge around what is to be protected. Therefore, a car should be fairly well protected already...

Mike

[GingisK]

Therefore, a car should be fairly well protected already...

EMP generally punches through most containers. This is a high energy partical burst, not like lightning or even radio emission.