The angle of your average race style seat will be wrong. As they generally slope up a bit similar to our stock seats but not the same. And yes they will lock you in pretty snugly, even given different widths. In a car, a really good race seat actually isn't uncomfortable at all, even all day, as long as you're belted in accordingly, either 4 or 5 point, especially with 5 as no chance of sliding forward at all. Personally if it were me, I'd just buy a good office chair. It's a novel idea, but might end up with pinched muscles in the back of your leg.