A few of the more tech savvy gamers who did some digging on the Max Payne 3 disc found a list detailing different cars, many of which do not appear in the Max Payne series. One series they do appear in however, is GTA. While I have no way of proving that the list is real, it is worth a looking at. If you aren't interested at looking at a bunch of code, here's a short article that names a few of the bigger surprises hidden inside. Including information to a minor character from GTA IV.
The short list
http://www.gamepodunk.com/page/inde...e-gta-v-code-found-hidden-in-max-payne-3-r665
the full list
http://www.gtaforums.com/index.php?showtopic=510202&st=0
The short list
http://www.gamepodunk.com/page/inde...e-gta-v-code-found-hidden-in-max-payne-3-r665
the full list
http://www.gtaforums.com/index.php?showtopic=510202&st=0