Out of curiosity, what would be considered the worst automatic transmission ever to be made, in terms of reliability? Some that come to mind include:
-Nissan's Xtronic CVT, notably the 2.0 model in their newer models. People have reported their CVTs going only to 60k before grenading and needing replacement, i.e. on the 2013-2015 Altima.
-Ford's PowerShift Dual-Clutch Transmission, aka PowerShudder and PowerShit. It was known for jerking, shuddering, vibrating, and hesitation when moving from a stop. It even was to the point that Ford's higher ups knew that the transmission was going to have issues, and yet they still mass produced them for their cars and sold it to customers.
-GM's earliest attempt at a CVT, called the VTi, which was used in the earlier Saturn Ion and Vue models. They were so awful to the point that GM had to ditch it completely, and moved back to a traditional torque converter automatic in the later Ion and Vue models.
-ZF's 9HP 9-Speed auto for FWD cars, used by numerous brands, i.e. FCA, JLR, Honda, which people said makes rough shifts. And what was Nissan thinking with the 2022 Pathfinder, going from a junk transmission (CVT) to a somewhat less junk one. (ZF 9HP)