DF, Downtown Mexico City. Ive been there several times, lots to do. Make sure to have a giant omelet at Sanborns for me! lol. I wouldnt mind moving there myself, thought about trying to import Korean CCTV equipment for DF installs, cheap, a good investment most business will spend on.
Last time I was there, a small lot just outside the car permit center outside Juarez had some great imports, tons of nissans of all vintages. A long drive to MX city, but ive done that to. Oh man, that makes me remember the DF Nissan dealer, yes I had to visit there to! lol
Safe travels brother.