This made me quiver a little bit.  Holy crap.  I've always worn my seatbelt.  Ever since I was in an accident when I was young.  My mom was hit during an icestorm.  I remember I was in the backseat.  We both had seatbelts on.  I walked away fine.  She had some damage.  I don't remember all of it, but I know she was in the hospital for awhile, had a neck brace....and fainted a lot afterwards.  Eventually she was fine...but it never left me.  The image of the guy coming twards us in slow motion almost trying to get out of the way(almost like the guy in this video) is painted in my head. 

If you don't have that image...maybe this ad will help.  It's pretty powerful!