I'm sure that the community is grateful for the information that you provided. Any information is better than the random guesses that we have been making thus far.
A suggestion:
Please adjust this achievement to be the top 3 zones in a season.. 1st, 2nd, and 3rd place Constructor and Driver Fanzones.
This will preserve the desired cooperative efforts and engagement, while still allowing it to be challenging enough to (potentially) keep a player engaged with the game for multiple seasons. Assuming that the assets for the 1st place are already in place.. one would hope that making silver and bronze versions of the assets, changing the in game coding to allow for 2nd & 3rd. adjusting the achievement triggers in the various platforms, and QA testing the changes would not be an overly taxing redirection of resources.
I cannot speak for anyone else, but I can say that my desire to purchase further EA products (and especially pre-ordering them) is becoming increasingly based on the achievements. I do not mind a challenging achievement list, but something like "In The Zone" which has a high luck factor is one that will seriously impact my future purchasing decisions.