South America

We've done 28 of 30 states in Mexico, plus Belize and into Guatemala in our 38 foot Monaco while towing a Honda CR-V. While dated, 99 Days to Panama.Com took their 30 footer down to, yes, Panama. Lastly, ExpeditionPortal.Com has plenty of in-progress adventures under their forum section. Your profile doesn't say what you are driving but you should be able to do it down to Panama at least.

google drive the americas.

It will pull up a website with dozens of blogs.

There is a lot of info about Central and South America on this forum; just type in "South America" (without the quotes) in the Search box, check the Search only in RVing in Mexico and South America box and run the search. Not only will you get info from people that have done it, you will also find links to travel blogs and other websites with tons of info