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Model	Years	Speeds	Drive Train	Trans Model

STS Base	2005-2007	5 Spd	RWD, AWD V6 2.8L 3.6L V8 4.6L	5L40E, 5L50E
STS V	2006-2009	6 Spd	RWD V8 4.4L Super Charged	6L80
STS Base, Platinum	2007-2011	6 Spd	RWD, 4WD 3.6L V6, V8 4.6L	6L50