Laredo or Reynosa to Saltillo Map and Roadlog
The distance from Laredo, TX or McAllen, TX to Saltillo, Coahuila, Mexico is about the same. If you want to drive to Saltillo, San Luis Potosi, Guadalajara, San Miguel de Allende etc. either of these crossings will work for you. Drive time is about the same. So, only choose Laredo or Columbia crossing if you are driving to Texas from the West or due North. If your route takes you through Houston, TX, then come on down to McAllen / Reynosa. If your route takes you to San Antonio, TX, then you are closer to Nuevo Laredo and the Columbia crossing.
Please order the map from here.
Please, please, do not ask about driving from Laredo to Guadalajara in one day. I don't care what MapQuest says. Driving in Mexico is not like driving in the USA or Canada. Besides hard-to-explain road surprises (even on toll roads), there are Army checkpoints which will slow you down. And you never, ever, ever want to drive past dusk - in the winter that means not after 5 PM. Besides, why rush? Why not enjoy Mexico? My maps and road logs will give you worthwhile attractions to visit.
In this case, if you leave at the crack of dawn and are not delayed getting your car papers and tourist permit (normally about thirty minutes to one hour), you could drive to Matehuala and spend the night, whether in a car or RV. If you get to Saltillo after 3 PM, for God's sake (and that of your family) please stay in Saltillo and have a good cabrito dinner. My map below tells you where one of the very best cabrito restauants in Mexico is located.
Map below is reduced image quality to encourage you to buy your own copy, which is PDF and crystal clear. Besides, it is the right thing to do.
Order from my shopping cart.