Discussion on: RESTful API design concerns

I like the shorter URL for a couple reasons:

1. It’s easier to read, therefore easier to use
2. The spot part of the url makes me think I’m pulling the car details relative to that spot. In other words, pulling the spot/car relationship, not the car itself.
3. The longer URL implies that there may be a many to many relationship, that multiple spots may be valid for that car. Otherwise why specify the spot?
4. I would argue that the simpler URL is more flexible. If you add different use cases for the car, you can add them on in relationship URLs. But the car will always refer to the row in the car table, as it should.