does anyone know this couple?

[Nacho]

I was recently (October 2012) walking down the street in a town on the Pacific coast of Mexico.  I heard a familiar rattle and just had enough time to take this picture with my phone whilst shouting "I've got a bullet!"... probably not the best thing to shout in a place with such a high murder rate   
I got the impression they were on a long adventure... but it was dark and the traffic was heavy