Nice posts gents.
The field of view becomes very important in the absence of other inputs when driving sims. We simply don't get the cues we have in real life through G forces and the like. As already pointed out, with a narrow <90 FOV we see much more detail in the corners. The problem here is it could be likened to driving with blinkers on. Don't try this at home, but I would bet that if someone tried wearing blinkers and drive, they too would find it difficult to judge speed in real life.
We humans judge our speed through something called optic flow. simply put, that is how fast something moves across our field of vision. A tight FOV loses the peripheral vision we rely on for speed judgment. We might not necessarily look to the immediate sides of the track, but we are aware of it, and this lack of information leads to overspeeding, and perceived lack of handling.
A wide field of view on a flat screen alone does not fill the gaps, and always looks distorted unless a curved screen is also used. It is a very complex matter to try and get a plausible effect on equipment (pc + monitor) that isn't specifically designed for the job.