My FOV is set to 80 on a 22" 1680x1050 monitor. Feels about right for most cars, see some of the dash and some of the rearview but mostly the road ahead. I also upped my glance angle to 70 degrees and that has helped quite a bit seeing cars next to me, I can tell a lot more easily when I can has overlap on me going into a turn.
It's not about resolution, it's about how big your screen is and how far you sit from it, vs the FOV you have.
Anyway, I have a 24" 16:10 monitor that I sit about 70cm from, I am guessing (I'll measure sometime), and fov 57 is about as low as I'll go. It's still a compromise - I must have some peripheral vision, but it's still not low enough either: stuff seems smaller than they really are and things appear further away than in real life. But no where near as bad as the higher fovs people use (hello fish eye lens - looking through the wrong end of binoculars ).
The bigger your screen is to your eyes (i.e. how much of your actual eye field of view it takes up) the higher the fov can be.