I was doing some research on embedded OSs and came across VXWorks. This os is used in the mars landers, industrial control systems and much more. What caught my eye was that it's used in lots of automotive applications. Here you will find a list that includes GM as one of the companys that uses vxworks in it's pcms. Does anyone here know what gm pcms run vxworks? I think it would be fascinating to screw around with.