There are those who say giving a vessel or locomotive gives 'her' a personality, like 'Titanic' or 'Flying Scotsman'. Titanic didn't quite live up to 'her' potential, 'Flying Scotsman' did.
My old Land Rover was christened 'Big Bertha' by one of my colleagues at Royal Mail. She lived up to her name, she was a handful but I had her for almost fifteen years before somebody else took a fancy to her. I'm still thinking of a name for my Discovery. Any suggestions? (See my Hub page, 'What car would you buy...?')