Has anyone considered getting a 2008 cts with the standard engine instead of the DI engine. All of the cars I have seen have had the DI engines, so I have not been able to drive one with the standard 3.6. There have been a few comments from reviewers about engine "harshness" and NVH issues with the DI engine and before I order one I was wondering if this is just nitpicking or if there really is an issue. Have those of you who are now driving your new CTS's noticed any unusual noise or vibration issues at either low or high RPM's? Also, if anyone has the standard engine, how is the performance? Thanks.