8. Bad Women Drivers
https://www.youtube.com/watch?v=tNfbgw-InaE#t=14 This isn't so much a secret as something you may have had an inkling for already; but Rockstar have made the 'hilarious' amendment to how women drive in the newer versions of the game, making them far more problematic and potentially suicidal when travelling through the world. It's obviously for the sake of parody and nothing more offensive than a stand-up comedy routine about the same thing (however near the knuckle that might be for you), but it's worth pointing out Rockstar are pretty naff at treating women in the GTA series as existing for anything other than sex or hilarity most of the time - something they really need to rectify in the next instalment.