One striking feature of the exterior design is the Optimum Cabin's rise angle changes when in Automated Driving Mode or Driver Operated Mode. Automated Driving Mode The cabin lowers to its lowest position to insure a low total overall height of 1,220 mm. This perfectly matches the overall width of 1,870 mm to create a bold, stable appearance. At the same time, the front end profile is compact to greatly reduce air resistance. When in this mode, the styling of HSR-VI is worthy of the ultra-high efficiency and next generation personal transportation.