Today I took this pictures:

It's the Track Stength Testing Analysis & Recording truck, I found it outside Holiday Inn Hotel in Uruapan Michoacan (Mexico). Ten years ago I took several pictures of similar unit but Richard (the man checking the systems in the truck) told me that it's not the same, every three years they get a new truck. The crew is working on KCSM tracks from Uruapan to Lazaro Cardenas, after they'll travel to Veracruz state (Ferrosur). Thanks to Richard to let me take pictures and the cap he gave me...

I took a video too, if you like you can see it, it's not the best quality...
http://www.youtube.com/watch?v=N3R3fiWc3Fw