I was wondering if anyone knows how to find the build numbers for the 2007 HHR. I have 2..one is a basic LS with the 2.2 and a 5 speed. The other is an LT with the 2.4 and a 5 speed. It took me 6 months to find it. Just wondering how rare the 2.4 with a manual trans is. I have not seen any others but mine.

 

Try writing a letter to GM and see if they will tell you. I tried to get build numbers on my '06 Malibu Maxx SS over on the Malibu site and the GM rep there tried but came back and said she wasn't authorized to give out that info.

Worth a shot.