Hello... I currently drive an Infiniti M35x, and I love how the car's seatbelts function: when the car senses a potential frontal collision, the seatbelts automatically tighten, pulling you into the seat. I've experienced this several times, though I'm happy to say that I've managed to avoid any crashes. But the seatbelts' action is very comforting. Do the belts in the Model S behave in a similar manner?