Due to space restrictions I have the left monitor at 75 degrees, and the right at 26. Visually there is no difference, as long as the correct parameters are entered on the triple screen setup pages the game renders everything correctly.
An added benefit of my setup that adds a bit to the immersion factor is that the left monitor is physically where the side window is, while the right monitor is like the right side of the windscreen, at least in LHD cars.
View attachment 784378