Sorry if this was answered elsewhere, I was not able to find it? Will model S have the same system as the roadster? or will it have a gearbox with - lets say - 2 speeds? Any information? I'm no engineer but my roadster is at speed on the highway ( Europe ) - noisy - Uses a lot of energy both things the model S would like to omit. As to be successfull in Europe it needs to be a miles cruncher at Autobahn-speed. So may be a gearbox would help there?