Solved

Achievements

Just a little help with the achievements,
As I have already built all of my buildings/facilities, how do I go about getting this?
How many cars defines a full race? just had 30 in the last race, that has to be close?
Where are the rules? lol

1. That one seems to be a little buggy.
2. 32 cars makes a full race.
3. Visit the help section, located next to the settings in-game.