A direct lightning strike will take out a car.
Buddy of mines brand new truck (paper license plate) was hit in the parking lot.
Long story short, it took the dealer several months to get it to run again as they replaced component after component. When they plugged it in on the master diagnostic computer, it did not even register that anything was connected. It left the dealer numerous times on test drives and came back on the wrecker.
He asked me what to do and I said take every wire and electrical component out, throw it in the trash and start over. Insurance wouldn’t do it.
He drove it from the service bay to the other side of the dealer and traded it in with 500 miles on it.
I have seen metal conduit blown out of walls by a direct lighting strike. Nothing man can make beats nature on a rant. However that said a nuke close enough to match that EMP is on your front porch.
Nobody wins.
Cars are very EMP proof however as they are built for a very noisy electrical environment what with the spark plugs firing off, and are pretty well shielded as most of the wiring is surrounded by steel.