I love my new Grand Prix GT. I was originally looking at the V6 Accord, but comparing the two I got more of everything in the Grand Prix at a smaller cost then the Accord.
Hell having the blasted Heads Up Display (HUD) alone is worthwhile for me to purchasing another GM in the future, well one that has that option at least.
Getting gas milage on a L36 engine in a Grand Prix that is similar to a Honda is pretty amazing when the Pontiac weighs more and has a much, much larger engine.
Also, for the new prototype of the Grand Prix, here is some info:
Pontiac G-Force
Also, the Grand AM has a lot of molding on it, but the Firebird, Bonneville, and Grand Prix don't. Heck, I have some molding, but not much at all. Not as much as I seen on riced out Civics, for example.
I think it is bias to say that all American cars suck, or all foreign cars suck or rock or whatever. Every manufacturer makes a few lemons and also great vehicles.
I think if you want better milage then go for the Honda or Toyota, but for pure displacement really can't beat Ford or GM. Then again that new 240hp Altima sounds cool.