Having been a motorcyclist when I was younger and ostensibly more reckless (not that motorcyclists are more reckless) I can tell you from experiance that you have very little getting in your way visually. However in a car you have two pillars holding your roof up to your immediate left and right, and door frames and boot pillars over either shoulders.

As a motorcyclist you have way more situational awareness than other vehicles on the road.

You also quickly learn that other road users are blissfully unaware of you and you drive accordingly.