Kathy,
I have been bringing my personal vehicle into Mexico for more than a decade. It is very convienent to have a car available when here.

However, you may not be familiar with the process of bringing a car across the border? (Beside it being a two day drive from the US/Mexico border to La Manz.) The Banjercito website (link below) is a good place to get familiar with bringing a car into Mexico. (There is a $400 US - deposit required,)

https://www.banjercito.com.mx/registroVehiculos/#