Prior to picking up my 2007 duramax tmorrow morning, I test drove it today as well as my alternate deal 2006 Dodge Ram. Even with the 360 HP in the Chevy, it felt weaker than the Ram with 325 HP. Comparing both at spedds below 60. However, once above 60 they both had equal accleration. Any thoughts as to why the Chevy has less low end acceleration? Also, both 3.73 axle, and the Ram only a 4 speed auto.