Driving to San Miguel de Allende from Texas

Your direct route on the toll road from the Nuevo Laredo border, besides a short drive to get to it, is the Mx. 57. This is the main very, very busy highway to CDMX and most of Central Mexico. Tens of thousands of vehicles travel it daily in both directions. Your are safe on this highway. I know since about 2018 there are not very many US or Canadian plated cars around Central Mexico as there was before but I presume that won't make your trip any more dangerous.

Matehuala and San Luis Potosi are cities on the way to SMA.

Hi and welcome to Mexico. You will love SMA. My husband and I are retired, have lived in Mexico for years, and have made this our permanent home. We moved an entire household, including 2 horses, 2 dogs and a complete recording studio, with no problems. We live near Puerto Vallarta, but decided to move near SMA, due to the heat, horrendous traffic, extreme over development, high prices, crowds, etc., of PV. We recently  bought a large, beautiful home on acreage, 15 minutes from the center of town in SMA, so we know a bit about driving in Mexico, with 2 large dogs, and we know the SMA area. In short, you have nothing to fear. The only bad things are the toll roads. And potholes. Driving in Mexico is expensive! But, you don't need exact change at toll booths. Gas is also expensive. Don't believe the US media propaganda. You are much safer in Mexico than you are in most American cities. Stay on the toll roads and drive during daylight [although we often drive at night and off the toll roads. We have never felt in any danger, never].

As for where to stay, look up hotels on your phone while traveling, and call them when you have an idea of where you will be that night. Or, just show up, which is what we always did. Even with 2 large dogs, we have never had difficulty finding hotels along our routes while traveling in Mexico, including our initial move from the US, which took 5 days and included horses, trailers, etc. Exercise common sense, be polite, and most of all, don't be scared! You might find flying and renting a car cheaper and easier and less stressful. Good luck, enjoy your stay, be careful but not fearful, be friendly, and you'll be fine. People will go out of their way to help you. Don't pull out wads of cash, but, have money readily available for the toll booths. Hope this helps.