The car world is so vast and heavily populated with intensely passionate sub culture genres. So, there are a lot of ways we can go with this conversation.
I'm going aesthetic, beauty, and charisma. Hell, I can't explain what evokes my attraction to the nostalgia, ingenuity and industry that created them - that would be a lot of conversation with a lot of different people.
Old cars have a lot of stories to tell. You can see it in their eyes.