Well, looking back at this, I discover I have one more question. Our Cadillac STS has a 4.6L V8 producing 320 hp and 315 lb-ft of torque. The SRT-6 has a 3.2L SUPERCHARGED V6 producing 330 hp and 310 lb-ft of torque. For those of you who own/have driven one, you know that this STS is a very quick car. What i'm asking is: Does anyone know the differences/similarities of the acceleration and power of the two are? Does the SRT have the same "get up and go" of the STS? Does it have the same whip-lash effect to your neck when you step on it? Any insight would be extremely appreciated.