Ok using the attached as source material, it appears that the 9-2x will only have one model with 175 hp, in a non turbo charges 2.5L engine. The 9-3 with have the three styles with two engine choices, the 2.0L with 210 hp, and the Aero with 2.8L with 250hp. The 9-5 will only come with one engine, a 2.3L with 260 hp. The 9-7X as know will have the two engines 4.2L with 290 hp and the 5.3L with 300 hp. I am surprised that Saab would be dropping the Aero version of the 9-2X, but mayb eit was too close in price to the 9-3, and was not selling. The base with 175 hp might be better as an entry level Saab. I am glad they dropped the 185 hp version of the 2.0L in the 9-3, 210 hp and 250 hp seem to make more sense and closely mirror BMW and others. As to the 9-5 only having the 260 hp engine in the revised model, I think that too makes sense from a competitive point of view. I am surprised that the 4.2L in the 9-7X has only 10 hp less than the 5.3L but I bet the torque numbers are further apart. All in all an interesting line-up for this fall.
http://www.gmfleet.com/us/acquiring/vehicinfo/summaries/2006/2006_GM_Car_Truck_Guide.pdf
http://www.gmfleet.com/us/acquiring/vehicinfo/summaries/2006/2006_GM_Car_Truck_Guide.pdf