I noticed the 185 has a seat that provides cushioning and absorbs impact to help the driver prevent any bad back, etc. The seat should bounce up and down (with the driver camera) according to amount of force or impact occurs when the train goes over rail joints or moves, would be very nice to have game feature this.
Wouldn't this also be included in your "camera movement" suggestion? But anyway, whether it's a separate feature, I welcome it.