Amateurs!
The local gangsters are getting sloppy. Attacking a couple of rivals at 4:40 in the morning (guaranteed to lose them support among the neighbors) is bad enough, but trying to set off a car bomb in front of an empty house is just plain stupid (14-July-2008, El Debate de Sinaola — my translation):
Outside [one] house a car was set on fire with two gas tanks in its interior. Apparently, the gangsters were attempting to blow their way into the house, which had been previously closed by authorities.
Some of the neighbors took refuge in the safest places in their houses during the attack, to “avoid a tragedy during something that seemed out of this world.”
The Federal Minister has already filed charges against the unknown assailants for property damage, but I expect these geniuses are going to end up rolled in a blanket and tossed out at the side of the highway somewhere. Heads optional — incompetent gangsters are a danger to everyone.
mexfiles.net 
Ah, what I wouldn’t have done for a massive 4:40AM car bomb while the Guadalupe pereginacion was plodding up my street. Can you forward my contact info to these unknown assailants?