Sorry to go slightly back here, but in the 'car static' situation whats the physical difference between putting your hand on the metal before stepping out of the car or stepping out of the car first?
Assuming i've built up a static charge in the car why wouldn't I get a shock by earthing myself on the door before stepping out, but would by standing on the ground and doing it?
Admittedly I haven't tried this yet but I await an answer with interest.
Cheers...