When I went for my first test drive in a Tesla Model S, I was put in a Model S P100D. So, at an appropriate point in my test drive, I tried out the infamous Ludicrous acceleration with my own 0-60 punch. I couldn't get past 35-40 before I bailed out. I would describe it this way: Most of us have experienced the common "head rush" after we bend over looking under a bed, etc., then instantly stand up, and we can feel ourselves get light-headed, or maybe even our vision darkens. I would describe that experience as like a wave moving slowly down from the top of my head. The experience while doing a Ludicrous acceleration was very similar, except that the "wave" felt like it was moving from the front of my face toward that back of my head, but at a far faster rate. I my felt vision start to go dark, which, more than anything else, scared me and left gave me the feeling that I was going to black out. Of course, this all happened within one second—so it was a very fast physiological response, probably greater because I am over 50.
......I bought the 100D.