Thank you all who responded. I have an additional question given my family's bad luck with GM. At this point, how solid are the electronics supporting the engine like the oxygen sensors, crank position sensor, coils, etc. I asked this because my family has had more than one 3800 which developed a problem right after 100k miles that 4 mechanics couldn't figure out where it would run on only 4 of 6 cylinders. I know these engines are not related other than they're made by the same company especially given that we're talking about the difference between overhead cam for valve for cylinder versus a two valve push rod. I just want to make sure I'm not walking into the same problem again. (I'm only considering this because I am getting desperate for a comfortable car).