driving modes

My gravity’s FDU was recently replaced. In the 5-6 days I had it prior to the replacement I am sure I felt a difference in driving and pickup across 3 modes. This was with the 3.3.2 firmware. Over the past 4-5 days since the replacement, and with the 3.3.5 update seems like all modes appear to...

Does anyone know in concrete terms what the different driving modes mean for an Air Pure? I mostly drive in smooth, and can't tell much of a difference in Swift. Putting it in Sprint does seem to make it quicker when I launch it, but I am interested in knowing what the real differences are...