Some cruisers follow the lifestyle of spending half the year (the non-hurricane half) cruising Mexico aboard their boats, and the other half of the year (the hurricane-season half) with their boats safely in wet or dry storage in Mexico and themselves elsewhere, engaged in other pursuits. It's a nice kind of life.
Some of these cruisers live in places in the US or Canada that make it easy to drive their personal vehicles in and out of Mexico as they visit their boats. For us, it's been a snap to load up our 15-year-old pickup truck with boat parts and supplies, drive from New Mexico into Arizona and thence into Mexico to wherever we had The Fox berthed. We preferred either Mazatlan (Sinaloa) or San Carlos (Sonora) as a home port. Our return trips often involved our pickup truck being equally loaded down with not just luggage and boat parts, but cool furniture and art we just happened to stumble upon all of a sudden like. That photo up on the right over there is pretty much what we look like, both coming and going.
Cruising publications periodically post articles with the latest information about driving in Mexico with a US-registered vehicle. This is our own such post about travel along our personal specialty, Mexico's Federal Highway 15. During the three years from 2015 through 2017, we drove back and forth several times from New Mexico to either Mazatlan or San Carlos; once adding in a touristy side-trip from Mazatlan to Durango (Mexico) and back again.
First, the precautions for first-timers: