I know a Colombian who will not even drive through Mexico. They will steal your car and possessions as soon as you go to sleep in your hotel. Even if you catch them in the act, their cousin cop will suddenly show up and they will tell him that it is their car and that they are just taking it back. This is exactly what happened to the Colombian who speaks fluent Spanish and is pure hispanic.

That is if you dont get kidnapped or simply shot for what is in your wallet. It you are white, you are a target and your only hope is to drive a beat up piece or crap that they dont want and look dirt poor. It is actually a stupid idea to go there outside of a resort.