The Food Truck is a time-limited event that takes place in the game from time to time.
As you make progress along your Food Truck route, you can receive a variety of rewards:
Differences between the Food Truck event and normal restaurant levels:
1) There are two counters for ordering;
2) Customers pay in a currency that is unique to each event;
3) When the event is over, all the currency you have won will expire.