Roling of windows down/up to hear the outside as if you were in Orbit mode

Or you simply wanted loud engine to soothe your ears but want to remain seated behind the wheel. That's a pretty common thing especially American/Euro Truck simulator fans or Train or bus simulator fans always at some point opened the window to tell the world how much you love listening to the engine rumble. Since the vehicle sound systems are evolving very nicely, i'd be worth listening to the engines from a different angle

 

This would be nice. Right now we have vehicles without enclosed interiors (Targa top bolides, the crawler hopper) that have muffled sounds breaking the inmersion.