Male cities? Hard to think of AUSTIN, Texas as female, since it is a common given name for males in our country. But I'm not from Texas, and I really don't know the tradition there.
Cars, for us, write their own stories. Our recently deceased Mrs. Stewart got her name from Mrs. Stewart's laundry blue-ing powder. Shortly after we got her, the starter failed. The cab driver who took us home was from Jamaica, and told us that in his country, to improve one's luck, one bathed in blue-ing powder. So call me "Gullible Smurf"?
Che is our old G-10 CHEvy van, one of the early, reliable workhorses of American fleets. We bought him when he was 18 years old. Che seemed an appropriate name for him; his outdated model-style gave the impression he ought to be carrying "economically challenged" guerillas around somewhere. It has become our tradition, when starting him, to proclaim, "Viva la revolucion!"