Crooks carry guns for more varied reasons than good guys. They carry for self defense against rival crooks (dope/gangs), they carry to evade/resist arrest by the police, and they carry to commit acts of violence and crime against their victims. As such their carry methods vary more. The vehicle thing is really common for rolling crooks. Mexican carry is usually a sign that theyre on their way to or coming from a crime. One method that's become really common here over the last twenty years, especially amongst the Latin gangs, is the girlfriend holster. Just have your lady hold your heater, in her purse or under her clothes. Cops still hesitate to search the girls...often because of restrictive policies and a lack of female officers. But that's real common here.