Aerodynamic drag is a force which resists vehicle motion and its magnitude is function of the speed. It depends on vehicle shape and size while its impact is greatest at higher speeds. While designing a purely urban vehicle its influence can be omitted or simplified to some degree but for more unive...
Electric vehicles were in fact introduced before internal combustion engine vehicles. Similarly, the wheel hub motors have been invented as early as in late XIX century. What were the obstacles which suppressed the innovations until their rediscovery in the recent years?