If you want to see the first functional constantly variable transmission (CVT) pull out the engine and tranny from the 61 Buick. The origins of the Buick "Dyna Flow" transmission consisted of stacked torque convertors (2 or 3 if it was in a cop car) with variable stators hooked up to the throttle. Also had a strange quadrant, P,N,D,S(super) and R.
With the Wildcat 445 in front, it would light up the tires from a standing start, and with your pedal to the floor, the engine would wind to about 4,000 RPMs and the car would catch up to it. No gears, just go as per the original Tucker design. You could lock the stators in low by selecting S. The reverse forks (really weak part of the system) would actuate a set of planetaries. Only issue was heat. After 20 minutes in the city, you could cook eggs on the cooler. Other than the fact that it weighed over 300 lbs., I still think with todays tech and a lockup circuit, would beat the current crop of CVTs hands down, especially if you tied in an overdrive planetary or a gear vendors.
The convertible version of the Electra (first year) has been on my bucket list since Dad sold our 61 4 door, 50 years ago. Learned to drive in that car. On a side note, this car had the coolest speedo ever. The speedo head itself was printed upside down and backwards and you viewed it through an adjustable mirror.
Bill