This adds two transaxles from the aircooled Volkswagen Beetle. One is a 4-speed manual, and the other is a 3-speed automatic, each using period-correct gear ratios from Beetle transaxles from 1970. The automatic is based off of the Autostick clutchless transmission VW offered, and though mine is using a conventional automatic instead the unique semi-automatic nature of the real transaxle, as I suspect that would require a custom-made vehicle controller.