I've come through here many times when I drive down to Tijuana or Ensenada. In a bid to increase…read moresecurity, Mexico is now conducting their own inspections in this area. Getting picked for inspection is really a matter of luck (or lack thereof). The inspection is not too much of a hassle, though. They ask for your license, registration, and they do a moderate inspection on your car. Just use common sense, and you'll be fine (don't bring anything that can be considered a weapon, no controlled substances, etc). The inspection will take less than 15 minutes, and you'll be on your way. From there, the road forks into three areas: zona centro (where it leads to to Ave. Revolucion), zona federal (which I believe leads you to Zona Rio), and the roads that lead you to Rosarito and Ensenada.