At the BMW Group, Simple is the acronym for sustainable and innovative mobility product for low energy consumption, a vehicle concept combining features and advantages of both motorcars and motorcycles. The concept owes its protective passenger compartment to motorcars whereas the streamline shape, the two occupants seated one behind the other and the uniquely driving experience are naturally owed to motorcycles. Whilst researching ideas for futuristic urban mobility combined with the prerequisite of reduced consumption (less than 2l /100 km eqals less than 120mpg) and emission values (50g CO2 /100 km), the BMW Group spawned this concept vehicle featuring the extremely low weight of 450 kg and aerodynamic drag properties (0,18 drag coefficient), which of course also fulfilled all the BMW Group premium brand demands: sheer driving pleasure, innovative vehicle configuration, technology integration and a sense of comfort and spaciousness.