It's been a couple months and I cant say too much but I do remember
harmonics, electrostatics & mag, lots of enzyme stuff, some gas/liquid solubility and lots of molecular genetics.
The OG exam was pathetically easy compared to my real exam. The AAMC PT was closer, but the PT CARS was much easier than what I got.
Remember, each MCAT will be slightly different. What I saw may not be what you see at all. Check out the reddit threads to see some of the larger trends people have reported. The AAMC can control a lot of what is posted on SDN, but Reddit is much more open and anonymous. However, this anonymity means you should take much of what you see with some skepticism. Better than nothing though.
go forth and study!