I was thinking about the amount of bad press 4x4s were getting. I agree that a lot of the times there is no good reason for having one, that they are typically heavier, have bigger engines, less fuel friendly tyres and are less aerodynamic than "normal" cars. And sometimes they are a tool for the job and nothing else will do it better.
This got me thinking about other examples of cars which are heavier, less aerodynamic and less practical. And somehow convertibles came to mind.
With no roof to keep them stiff and strong they are typically strengthened elsewhere and have extra weight from folding roof mechanisms. They are less aerodynamic, can carry less people (thus needing more cars for the same number of people, although that isn't often an issue). And if you get your roof down in chilly conditions heating will probably take quite a lot of power too.
So if someone tries to make you feel guilty about your car but has a convertible you can fight back a little
That and tell them to eat local food