Contemporary Mexican cartel use of car bombs began in mid-July 2010 and has since escalated. Given the proximity to the United States, some literally within miles of the border, the car bombings, with about 20 incidents identified over the last 2 1/2 years, should be of interest to local, state, and federal U.S. law enforcement, the U.S. Army, and other governmental institutions which are providing increasing support to Mexican federal agencies. An historical overview and analysis of cartel car bomb use in Mexico provides context, insights, and lessons learned stemming from the Medellin and Cali cartel car bombing campaigns. In order to generate insights into future