Why do these companies always have to design these as open-top vehicles???
They will sell a LOT more if they had an enclosed cab, with a removable top, and they will be usable in a far greater range of environments... Just a heater / defroster for the windshield, and a removable top. They'd sell like hot-cakes!
By leaving it open-top only, the customers are limited in how often and what conditions they can drive it.