How about implenting a mirror that has a FOV of about 200°?

benefits: you EASILY see what's left and right of you.

drawbacks: none.

it even isn't unrealistic, just in reality hardly anyone would mount such a thing because turning your head is quite easy. pushing buttons to look left and right, on the other hand, is not - depending on where the buttons are. and most of all it isn't more realistic.

what can i say - read your own sig
for real +1 but not 200 smthing more realistic

i suggest something mirror update that if you are in "incar" view that you see the right mirror on LHD and the left mirror on RHD too. and not only the Left or right one :P
its a bit anyoing.

+1

sugggested by me couple of times many many years ago which I think is very close to real mirrors used by race drivers with almost 180 degrees view. Both width of the virtual mirror and FOV should be adjustable to get best distance experience... and fps influence maybe?