0_Apprentice
I own a Porsche convertible due to my enormous wealth. Do you?
1_Wizard
I am not wealthy but i have a convertible too. I love it because it can be in an open-air mode and an enclosed one, varying in degree and means by model.
0_Apprentice
Yes thats what I love about it. Do you know when it originated? 
1_Wizard
Yes, it evolved from the earlier phaeton, an open vehicle without glass side windows that sometimes had removable panels of fabric or other material for protection from the elements.