getting ready for panamerican highway

hi everybody
so we are decided to go. next summer.
we gonna start in Chicago, than across US to Mexico and then down to Fire Land.
We have 10-11 months.

If anybody has any tips about some special places [non-tourist places], special warnings etc.
will be great to read something from you. on priva
acanay@tlen.pl

thanks and best greetings for the New Year
robb