You should see what we do to a Volkswagen even before we paint it.       We bathe it in steam, we bathe it in alkali, we bathe it in phosphate.  Then we bathe it in a neutralizing solution.       If it got any cleaner, there wouldn't be much left to paint.       Then we dunk the whole thing into a vat of slate gray primer until every square inch of metal is covered, inside and out.       Only one domestic car maker does this.  And his cars sell for 3 or 4 times as much as Volkswagens.       (We think that the best way to make an economy car is expensively.)       After the dunking, we bake it and sand it by hand.       Then we paint it.       Then we bake it again, and sand it again by hand.       Then we paint it again.       And we bake it again.       And sand it again by hand.       So, after 3 times, you'd think we wouldn't bother to paint it again and bake it again, right?       Wrong.