My only real experience with fluid drive was my Dad's '51 Buick Super, with a straight-8 and "DynaFlow" automatic, he either blessed it or cursed it depending on whether or not it was due for an overhaul, LOL - I asked him how fast it could go, and he told me he had seen 110 mph, and that was as fast as he cared to go. ;)
I have a lot of fond memories of sitting in the back seat of that car when I was a little kid, my butt parked on top of a milk crate which my Dad upholstered so I would have a "softer ride", that way I could see what was coming, of course back then nobody worried about seat belts, or what could happen in a collision.
I'm here to tell the tale, so I guess it turned out ok.
Heck, that was rocket-blast fast compared to Chrysler's Fluid Drive, which actually had a clutch for some reason or other.
I also owned a 1948 Buick Convertible! In fact, we had cars from the late 30's, 40's, and early 50's when I was a kid (and Christ was a Corporal). Then, road salt became popular and they all seemed to disappear in a couple of years.
By today's standards, these cars were dangerous as hell. They were fast enough, but had very poor brakes, and very sloppy handling. A Buick would go 80 easily, but if you wanted to change direction, technique was important. If you had to stop fast AND turn, you really had to know your stuff.
Bootlegger turns, a specialty! By the mid-50's I was out of American cars for good. Never out of Dodge Trucks.