Update: We've survived so far

Writing from Mazatlán tonight, after a 3+ hour drive from Durango across the Devil's Backbone (some 65 tunnels, many bridges, the Baluarte suspension bridge - an engineering feat to be sure).
First days' drive Zihua to Guanajuato. What a place! But definitely not a place to be driving one's car. The Friday night throngs around Jardin de la Union were something to experience, as were the crowds following the musicians on the nightly callejoneadas. Stunning architecture in a beautiful location. If you haven't visited Guanajuato, go. (Wonder if a 3 or 4 day bus trip from Zihua to Guanajuato is at all practical - for next season?)
Next was a drive through Leon, Silao and Aguascalientes. Huge GM plant in the former, and two (2) huge Nissan plants in the latter. Obviously, the auto industry has confidence in Mexico's future. (Wonder how President Trump will force US industry to stop the flight to Mexico?) The tremendous industrialization in the central part of Mexico contrasts with the lack of same in Guerrero, which seems to have missed the boat on attracting foreign industry.
Overnight in Zacatecas. Impressive and extensive Centro Historico, with the famous cathedral, but personally we prefer the smaller scale of Patzcuaro for that colonial feeling, and Santa Prisca in Taxco for an impressive cathedral.
Next night in Durango, which we liked very much. Lots of beautiful buildings, not as cramped as Zacatecas or Guanajuato, (though nothing compares to the latter). The weather was fairly warm, and so dry my nose started to bleed, after 5+ months in Zihua's humidity. The Durango Sunday evening crowds along the pedestrian-only streets, and into the huge Plaza de las Armas were huge - everyone enjoying themselves and spending money like drunken sailors. We couldn't help but feel how incredibly dull and dour we Canadians are, compared to the fun-loving throngs we experienced in Guanajuato, Zacatecas and Durango.
(It's probably an Anglo thing. Coming from Quebec, we were constantly amazed at how much fun Quebecois always seemed to have, compared to us Anglos.)

The impression we had, after only a few short days in the Bajio, was that the residents appear to enjoy life, have confidence in the future, and that Mexico is a country on the move.