I love Benz convertibles
What is a convertible?
You tell me ,you have the information. Conver-able!
Apprently it's a car that can convert between open-air mode and an enclosed one. I don't drive! 
Nice! Guess I could convert a bus to a car then ...Lol!
That would be cool. Convertibles didn't used to have glass side windows. They would just have fabric or something less stable. 
You mean it! What else can we convert?
We could convert trains.
Trains to airplane...smh! 
What an airplane?! I would love to see that.