Hi All. Been awhile since I have really been on the site.... Anyways... Wifey didn't much care for the color of our 2008 HHR and wanted more bells and whistles. So, I found a 2009 HHR with everything and color she wanted. But I have noticed, at least to me, the 2009 2.4 has a little more "pep" than what the 2008 2.4 had. Could it be that since the 2009 started taking the Flex-Fuel the computer is set up a little different? Anyone else notice any difference between years, but the same engine?