whether you can get into mexico with or without a passport might not be important....i think they are just covering their asses by making it a rule to carry one.
It excludes some of the most likely applicants (US and Canadians). People from other countries do need a passport.
Gary, I saw that a couple of weeks ago. Not many will be able enter on such short notice. Then there's the date. Wouldn't it be nice to end the race a few days before a major event in SoCal?
I disagree with the gas tank rule. If you want to run with a stock tank, you are pretty much guaranteed to lose the race. Everyone will have to run a larger than stock tank.