Not a professional driver, but I've ripped up several racetracks and done plenty of drag racing as an older teen. Your butt tends to feel everything if you don't have ultra-cushy seating, and because of its position relative to the vehicles center of gravity, it will feel more of the effects of various vehicle movements versus the arms or legs. Tune in long enough and you can literally read the road you're travelling just by how it feels, roughness, amounts of liquid on the road, etc.
Ever notice how your butt tries to move more than your hands and feet when making a sharp turn at a moderate speed turn, and how you instinctively correct for it in your seat by leaning or shifting around? Know the phrase 'Fly by the seat of my pants?' Pretty much all of that rolled into one bundle of instinctive attunement.
Ever notice how your butt tries to move more than your hands and feet when making a sharp turn at a moderate speed turn, and how you instinctively correct for it in your seat by leaning or shifting around? Know the phrase 'Fly by the seat of my pants?' Pretty much all of that rolled into one bundle of instinctive attunement.