modern buses are designed with ergonomics in mind first and foremost (the driver needs to be able to see, and passengers need to be able to board easily) but most modern buses have rounded corners and the fronts of them slope a bit and are bowed basically as much as they can be without wasting space.
also shit like
>>1117932 >>1117933 isnt actually much more aerodynamic than pic related. once the air clears the front, all that's really needed is for the walls to be straight. if you really cared about optimal aero, you would probably gain more from diffusers than from meming out your bus into half of it being unused space because you took the teardrop thing too seriously
>>1115533cars are designed like that because you want downforce on the front
even cars with the engine in the middle or back are designed like that so they don't fly off the road at high speeds
