Both the Roadster and the Model S use a single gear to change their final drive ratio, so they do have gearboxes, technically. :-) The Roadster was actually pl

Both the Roadster and the Model S use a single gear to change their final drive ratio, so they do have gearboxes, technically. :-) The Roadster was actually planned to be a two-speed, but had issues with it: http://en.wikipedia.org/wiki/Tesla_Roadster#Transmission http://en.wikipedia.org/wiki/Tesla_Roadster#Transmission