What's the ananlogy of sedan, coupe, convertible, limousine?

Question

please help me!

Answer 1

Analogy to what?  Those are all car types but in an of themselves I don't get the analogy.

Answer 2

The evolution of laziness.

Answer 3

Each of those vehicles is more expensive than the one that came before it.  Typically coupes are more expensive than sedans, convertibles are more expensive than coupes, and limos are the most expensive vehicles.