As for cars, the UK TV show "Top Gear" had a VW Golf (rented at the local airport) zapped 600K volts (with a driver in it!) to examine what would happen if your car was struck by lightning. The result - it cranked right up and everything worked.
You can see the experiment here at
http://www.youtube.com/watch?v=ve6XGKZxYxADoes the EMP weapon based
here have the ability to take out targeted Electrical Power Grids all over the world?