For a dragster, one team made a continuously variable type of this; in cars they come in automatic & manual
... CVT technology uses only one input from a prime mover and delivers
... [DOC] [TLE] Hydra-Matic History: GM's First Automatic Transmission - Ate Up ... [PAR] May 29, 2010 ... GM's original Hydra-Matic transmission was one of the most ... its conventional 
manual transmissions in favor of F1-style sequential gearboxes.