Heh - got mobbed at the sports bar where I was trying to meet some cousins because the Lakers won today...
Anyway, back to the questions at hand.
Lamborace - I've got one photo that I made myself of my friend's VW R32. I tried to make another on of a WRX STi (type GC), but it froze up before I could print. I'll get a couple more and scan them and post them.
cobragt - The graphics aren't any different than GT4P's on the surface. They're still good, and honestly IMHO, there aren't any racing games out there that look significantly better. I noticed the G-meter, but didn't really put 2 and 2 together about it. I played Enthusia and that one had a G-meter in it as well, but it had a 4-way meter. And as for the N'Ring...you can race a full set of 6 on it. It seems the best way to win those is to drive really conservatively - just wait for the others to make mistakes.
I also logged a bunch of time with the photo mode and I liked it a lot. Printing takes forever and a day (a few minutes per print), but the quality is phenomenal. The car and the camera have specific places where you place them, so you don't have complete freedom, but where you can place items are alway picturesque anyway. The camera has full range mobility - pan left or right, tilt up and down, raise the camera up or down or dolly the cam left or right. But probably my favorite aspect of the options is ability to change the focal length and aperture of the shot - just like real photos. I just hope that they add the ability to turn the wheels or do something to simulate car motion.