The ability to swipe your finger across the car seat to tailor the settings of your radio, heater or air conditioner, or anything else, might help drivers keep their eyes on the road.
It means that when you're ripping around the Italian countryside like a fleeing bank robber, with the Huayra's turbo wastegates exploding, tearing the veil with the sound of angels having a mid-air collision, there is somehow a deft, invisible finger holding the car to the pavement.